Which of the following is/are used to classify a star based on its temperature and luminosity?

A. Line spectra
B. Blackbody spectrum
C. Parallax measurements
D. Hertzsprung-Russell diagram

Answers

Answer 1

Answer:

D. Hertzsprung-Russell Diagram

Explanation:

The Hertzspring-Russel Diagram or HR-Diagram is used to study the evolution of stars. It plots stars depending on the temperature against luminosity. Stars go through different changes depending on its mass at the beginning. These changes occurs in stages and each stage is marked by a change in temperature and luminosity.

Answer 2

Answer: Hertzsprung-Russell diagram.

Explanation:


Related Questions

What is more common in developing nations than industrialized ones?

Famine
Jobs
Technology
Education

Answers

Answer:

Education ( last choice)

I think this is the answer.

^^^^ he is correctttt

How is the water in a lake different from the water in a stream? What's the difference between a closed lake and an open lake? Explain why lakes are considered temporary bodies of water. What's the main difference between a marsh and a swamp? Identify four functions that wetlands perform.

Answers

1. The main difference between the water in the lakes and the water in the streams is that the water of the lakes is enclosed, thus it is more static (relatively speaking), while the water from the streams is moving along the banks. The water of the lakes is relatively static. Not to get me wrong, it moves, but it moves in an enclosed area, and it moves horizontally, not downward. The water of the streams on the other hand is moving much quicker, and it moves along the banks. This water moves downward, from the higher parts toward the lower parts.

2. The difference between a closed lake and an open lake is that the close lake doesn't have water from another body of water coming in and going out of it, while the open lake has exactly that. The close lakes don't have rivers and streams coming into them, nor there's a river or stream coming out of them, they are closed by higher physical features. The open lakes on the other hand have rivers and streams coming into them, as well as having an opening from the which the water is coming out, thus there's a stream or river coming out of it, which makes the water slowly circulate and change.

3. The lakes are not the most reliant bodies of water when it comes to being long lasting. The reason for that is that they are bodies of water that are the easiest affected by the changes in the climate, as well as the changes in the relief. The geological activities can simply make the lake go up, or lean sideways, thus it can lose its water through runoff. If the rainfall decreases, then the lake will have higher loss of water through evaporation then what it gets, resulting in drying out.

4. The main difference between the marshes and the swamps is that the marshes are wetlands that are very rich in nutrients and they support grasses and reeds, while the swamps are wetlands that can support trees and other woody plants. The marshes can be found on the fringes of the lakes and the rivers, and they re practically a transitional zone between the waters of these water bodies and the land. The swamps are found along the shores of the lakes and the large rivers.

5. The wetlands have numerous functions in the natural order, some of which are:

- flood storage

The waters of the wetlands manage to slow down and store big portion of any incoming water, thus being able to either stop a flood, or at least minimize its effects

- protecting the water quality

The wetlands, with the amount of water they have, as well as all the different types of bacteria in them, manage to filter out the waters that polluted and coming into them, thus serving as a nice natural filter.

- prevention of erosion

Because the wetlands manage to slow down the waters, they contribute significantly to minimizing the downstream erosion, thus keeping the soil in healthier condition

- providing habitat for lot of plants and animals

The wetlands offer nice living conditions for lot of plants and animals. They provide lot of water, often rich in nutrients, shelter, hunting ground, food sources, enabling for numerous different types of ecosystems to develop in them.

The water in a lake is generally still or slow-moving, while water in a stream flows rapidly.A closed lake has no outlet, while an open lake has an outlet for water drainage.Lakes are considered temporary bodies of water because they can undergo changes in size, depth, and even disappear over time.The main difference between a marsh and a swamp is that marshes are characterized by soft-stemmed vegetation, while swamps have woody vegetation.Functions of wetlands include water filtration, flood control, habitat for wildlife, and carbon storage.

1. The water in a lake tends to be calmer and less turbulent compared to the fast-flowing water in a stream. Lakes often provide a more stable environment for aquatic organisms due to their stillness.

2. A closed lake has no natural outlet, causing water to accumulate within its basin and potentially leading to higher mineral concentrations. In contrast, an open lake has an outlet that allows water to flow out, maintaining a more balanced water composition.

3. Lakes are considered temporary because they are subject to natural processes such as evaporation, sedimentation, and changes in precipitation. These factors can cause lakes to shrink, dry up, or even merge with other water bodies over time.

4. Marshes are characterized by herbaceous plants like grasses and reeds, while swamps are dominated by trees and shrubs. This distinction in vegetation type is the main difference between the two wetland types.

5. Wetlands, including marshes and swamps, perform crucial functions in the ecosystem. They act as natural water filters, removing pollutants and improving water quality. Wetlands also serve as natural buffers against floods, provide habitat for diverse species, and play a significant role in carbon sequestration, helping mitigate climate change.

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Relative dating is used to determine the

a) actual date of an event
b) length of time between events.
c) age of one event in comparison with other events.
d) rate at which a geologic process occurs.

Answers

Answer:

c) age of one event in comparison with another

Explanation:

The relative dating is a commonly used method among the geologists, paleontologists, and archaeologist. This method is used for determining the order of events that happened in the past, or rather the age of an object in comparison with another object. This also means that it is not necessary for this purpose to determine the absolute age of the objects, but instead the age of one one of them is compared with another one, and we get to the relative dating of an object that is required.

A local culture is defined by _________

Answers

Answer:

A local culture is a group of people in a particular place who see themselves as a collective or a community, who share experiences, customs, and traits, and who work to preserve those traits and customs in order to claim uniqueness and to distinguish themselves from others.

Final answer:

A local culture is defined by the shared behaviors, beliefs, and practices specific to a group of people within a certain geographical area or community, which gives it a unique identity.

Explanation:

A local culture is defined by the collective behaviors, practices, traditions, and beliefs that characterize a specific group of people living in a particular area or region. It includes aspects like language, religion, customs, social norms, and even the food they eat, the clothes they wear, and the arts and music they produce. A rich local culture gives a unique identity to a community, distinguishing it from others. For example, the local culture of New Orleans is greatly influenced by Creole, French, and African traditions, making it distinctly different from other parts of the United States.

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Identify a problem sub-Saharan Africa will face in the future. (short answer/essay)

Answers

Loud music is ok good fun but the only way you could see a good game of the movies and the

The problem which sub-Saharan Africa will face in the future:

There are certain possibilities where in near future it is likely to identify problems in the sub-Saharan Africa. And it can be measured by the evaluation of debt and the country is being too much dependent to other foreign nation for living.

Among the necessary sector this country is seriously facing problem with Public health issues which includes HIV/AIDS. Not only in health but also in education section, due to lack of funding schools are getting closed. The state or sanitation has also not show any change lately.

What is another name for a drainage basin?

Answers

Hello!

The other name of drainage basins are even called water sheds

Thanks for using Brainly!

Another name for a drainage basin is watershed or even a catchment basin/area

Explanation:

It is a piece of land where water collects and later drains off into the same outlet. This water gets collected from rain, snowfall, underground water and nearby narrow streams. They form a hierarchical pattern by connecting with other basins.

The drainage divide is what divides basins from one another by forming topographical barriers. Close basin is one type where there is a single point known as the sink within the basin where all the water collects. This sink could a lake which is dry or an area where all water on surface is lost underground.

The biggest objection to Wegener's continental drift hypothesis was _____.

a) there was no evidence to support it
b) the fossil record didn't match
c) the "fit" between Africa and South America
d) it didn't explain how the continents moved

Answers

Answer:

a) there was no evidence to support it

Explanation:

Wegener noticed while looking at the maps that some parts of the continents, especially South America and Africa, seem to match up perfectly. This led him to think that maybe the continents in the past were actually connected, but because of some force they moved apart. He went out public with his hypothesis, but it was largely rejected, and he was laughed at and ridiculed, as the scientists thought that there's no force that can move the continents. Wegener didn't stop there, and he continued to look for clues, and finally managed to find some clues at the topography of the Atlantic Ocean. He noticed that the mid-ocean ridge is the highest, but as you move away from it, the sea mounds are becoming flatter and lower, thus a sign of erosion, and he actually turned out to be right.

If it is __________ in the Northern Hemisphere, then it must be __________ in the Southern Hemisphere.

Answers

Answer:

Cold and then hot. Opposites always.

If it is summer in the Northern Hemisphere, then it must be winter in the Southern Hemisphere.

Explanation:

If it is summer in Northern Hemisphere, it will be winter in Southern Hemisphere and vice versa. The northern hemisphere and southern hemisphere have opposite seasons. Northern hemisphere is the region lying north of the equator and southern hemisphere is region lying south of equator.

The difference in seasons is because of the tilt of the earth. In December, the northern hemisphere experiences winter whereas southern hemisphere experiences summer because southern hemisphere is tilted towards the sun creating warm temperatures.

Climate determines all of the following except __________. A. the price of produce B. the amount of production C. what products are cultivated D. where agriculture is produced

Answers

Answer: A

Explanation: All the rest are correct!

Answer:

A. the price of produce

Explanation:

As the climate of a place remains static for a longer time period and thus the production of the commodity depends on the climatic characteristics of the place.  Hence the price remains to be unaltered by the climatic parameters of the place and thus the amount of the product and the product to be cultivated gets affected by the availability of the rainfall and the duration of the sunshine.  But the price is an economic factor and cannot be directly estimated by the values of the physical parameters.

_____ is the largest object in the Asteroid Belt. A. Ida B. Pluto C. Ceres D. Gaspra

Answers

C. Ceres

I'm pretty sure that's the answer. you can double check on Google.

The building of canals was important because it _____.


helped boats use wind power

created a need for fossil fuels

made fishing more efficient

made more places accessible by water

Answers

Answer:

the last one

Explanation:

because it is the most efficient way to transport water

Made more places accessible by water

what is frosty peaks tectonic plates​

Answers

Answer:

North American tectonic plate

Explanation:

Frosty Peak is located in the northwestern part of the North American tectonic plate, relatively close to the boundaries with the Eurasian plate and the Pacific plate. Frosty Peak is a volcano, of the stratovolcano type. It has an elevation of 1920 meters above sea level. It is part of the ''Ring of Fire'', the largest chain of volcanoes on the planet. Its formation is a result of the subduction zone between the Pacific plate and the North American plate, resulting in extensive volcanic activity, near the subduction zone. The name of this volcano may seem little ironical, as the volcanoes are associated with heat, not with frost, but because of the area where this volcano is located, it is mostly covered with ice and snow.

What kind of map is this?
A. Military
B. Aeronautical
C. Nautical

Answers

Answer:

C nautical

Explanation:

Final answer:

A Reference Map is designed for navigation and locating specific places, integral for a variety of professional and personal navigational purposes.

Explanation:

The type of map you are inquiring about can be categorized as a Reference Map. These maps are designed to assist with navigation over the earth's surface and are essential for locating specific places and charting a course to them. Common examples include street maps and highway road maps.

They serve a variety of purposes, from land use and zoning to aiding in efficient navigation using devices like GPS units. For precise navigation activities, accurate and up-to-date reference maps are vital. In contrast, thematic maps are typically used to show specific themes or data patterns across geography, which is different from the purpose of reference maps.

Which of the following statements about uniformitarianism is correct?

Answers

Answer:

B. The geological processes that occur today always occur in the past

Explanation:

Uniformitarianism is an understanding that in the universe there is order so that an event will be repeated in the next period.

One Scottish geologist, James Hutton, conveyed at the Edinburgh Royal Society meeting that the earth has a long history and that this history can be interpreted in terms of the current process observed. An example is the soil formed by weathering bedrock for thousands of years. He also suggested that supernatural theories were not needed to explain Earth's geological history.

Charles Lyell in his book Principles of Geology argues that mountains and valleys and physical features of the earth's surface are not created as they are now or are not formed by successive disasters, but are formed by continuing volcanic processes, upheaval, erosion, glaciation and so on in a very long period of time and still continues today.

From this explanation it is concluded that the most correct answer is B. The geological processes that occur today always occur in the past.

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Details

- Grade : Junior High

- Subject : Geography

Keywords

- Uniformitarianism

- Geologi

Answer: b

Explanation:

Which of these terms describes government-sponsored policies and organizations that provide free healthcare and education?

Answers

Social welfare programs

Explanation:

Social welfare programs are known all across as government policies and organizations that provides free healthcare and education. They are a key part of any governance all across the world.

These programs consists several sub-units that helps to provide a robust welfare package to the populace. It is a system aimed at enhancing the general well being of people in a particular place. It includes the provision of free education, free health care services, access to pipe-borne water, monthly stipends e.t.c

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The sudden eruptions of energy from a small area of the Sun’s surface are known as :
solar flares.
sunspots.
prominences.
solar winds.
ANSWER IS B ) SOLAR FLARES

Answers

Answer:

solar flares

Explanation:

The solar flares occur suddenly on the surface of the Sun. They can last for only few minutes, or for few hours, depending on their intensity. Basically, the solar flares are large eruptions o electromagnetic energy on the surface of the Sun, looking like spots from Earth's perspective. These eruptions on the Sun can be smaller and larger, and they travel with the speed of light, so the closer space objects, Earth included, feel the effect instantly once they appear. A large solar flare can actually be very dangerous, as it has the potential to destroy everything electrical on Earth, getting back the human kind back several centuries in a second.

Answer: Solar Flares

Explanation:

What type of conflict is apparent in Burma?

Economic

Resources

Political

Crime

I think it's D or B. Will mark brainliest as soon as it lets me, concerning if you're correct!

Answers

Answer:

The conflict in Burma has violence and crime as a big problem. The correct answer is D.

Explanation:

currently violence in Burma has significantly increased poverty and underdevelopment generating displacement to other countries. in addition to the lack of public order caused lack of food security, public services, health care.

I hope it's help you

The conflict that is apparent in Burma is Crime

Answer: Option D

Explanation:

The war that is going on in Burma, now Myanmar, is between the Araknese Muslims and the Buddhists where Muslims fled from the Japanese controlled and Buddhists majority regions to the regions which were dominated by the Muslims which resulted in many crimes against humanity like genocides, rapes, torture, arbitrary detentions. Thus making it a war of crimes and to these the officers also turn a blind eye.

Tectonic plates can move toward each other and squeeze large blocks of rocks together, creating folded mountains. Which of the following terms describes a kind of fold in which the oldest rock layers are in the center of the fold?

A. Asymmetrical fold
B. Symmetrical fold
C. Syncline
D. Anticline

Answers

Answer:

D.Anticline

Explanation:

Answer:

D. Anticline

Explanation:

The fold type in which the oldest rock layer is at the center of the fold is described as an anticline. An anticline young outwards from the core of the fold and the youngest layer is the most outward one.

When tectonic forces buckles a sedimentary rock sequence in an area and  tension is created, the sequence folds with the youngest layer projecting outward and the oldest at the center of the fold.

A syncline on the other hand has its youngest layer at its center and the oldest layer is outward. We say the rock layers becomes older from the core of the fold.

on Monday Carrie and her family travel 792 on Tuesday they travel another 430 miles about how many more miles did they travel on Monday than Tuesday​

Answers

Answer:

362

Explanation:

explain the effect of force​

Answers

Answer: A force acting on an object may cause the object to change shape, to start moving, to stop moving, to accelerate or decelerate.

Explanation:

Which type of greeting is commonly used in America business culture

Answers

the alot of things but "Shaking hands" is used commonly

Answer:

Shaking hands is the type of greeting that is commonly used in the American business culture.

Explanation:

Shaking hands, in the American business culture, is believed to be the first step towards commencing a successful communication. It is looked at as an egalitarian gesture. In the American business culture, shaking hands is also an intangible symbol of positive affirmation of the consent that is established between the two people shaking hands with each other.

Which is considered a modern space exploration project rather than a historical or future project?
launch a satellite - IT`S NOT
land on the moon
capture an asteroid - IT`S NOT
launch a space probe

Answers

It’s launch a space probe because landing on the moon is historical as we’ve already accomplished it and capturing an asteroid is future as I don’t think we have the technology and equipment to complete it.

Answer:

(D) launch a space probe

a river and it's tributaries​

Answers

Answer:

Every river is part of a larger system—a watershed, which is the land drained by a river and its tributaries. Rivers are large natural streams of water flowing in channels and emptying into larger bodies of water.A tributary is a smaller stream or river that joins a larger or main river.

______ is the most densely populated country in Southeast Asia.

Laos

Indonesia

Nauru

Papua New Guinea

Answers

Answer:

Indonesia is the most densely populated country in Southeast Asia.

Explanation:


Absolute-age dating techniques can be used to determine the age of which of these? Select all that apply.
A. Earth
B. some rocks
C. some fossils
D. substances made entirely of Pb-206
E. substances made entirely of Ar-40

Answers

The answer is B and C

the correct answer is option a, b and c. Absolute-age dating techniques can determine the age of Earth, some rocks, and some fossils using isotopes such as uranium-238 and potassium-40. However, substances made entirely of Pb-206 or Ar-40 are not suitable for these methods. Examples include uranium-lead and potassium-argon dating techniques.

Absolute-age dating techniques can be used to determine the age of certain materials based on the radioactive decay of isotopes. Here are the appropriate applications:

A. Earth: Scientists can estimate Earth's age by dating the oldest rocks and minerals using methods such as uranium-lead dating.B. Some rocks: Various dating techniques like uranium-238 to lead-206 and potassium-40 to argon-40 are used to date rocks.C. Some fossils: Fossils can be dated using methods like uranium-lead dating, though not all fossils will contain suitable isotopes for this purpose.

Items D and E are not directly relevant for dating using these techniques because substances made entirely of Pb-206 or Ar-40 do not provide a decay process that can be measure; Using uranium-238, which decays to lead-206, geologists can date rocks and estimate Earth's age. Likewise, potassium-40 decaying to argon-40 is a reliable method to date ancient rocks.

Which Asian language has seven dialects, including Mandarin? A. Hindi B. Chinese C. Korean D. Malay Please select the best answer from the choices provided.

Answers

B. Chinese has seven dialects including mandarin

Hello there!

Answer:

Chinese

Explanation:

The Asian language that has seven dialects would be Chinese.

The dialects in the Chinese language are:

MandarinHakkaGanYueWuXiangMin

While they have over one billion people living in China, they have many people that speak different dialects in the country, with also having many people speaking each dialect. Mandarin would be the most spoken language in china, due to the fact that it is known as the native language with 2/3 of the population speaking the dialect.

What is the ring of fire

Answers

Great Question! The ring of fire is an area in the basic of the Pacific Ocean where many earthquakes and volcanic eruptions occur. The ring of fire is a result from plate tectonics.

during the earliest years of agricultural development, ___ allowed farms to be farther from rivers.

Answers

Answer:

Irrigation.

Explanation:

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Final answer:

Irrigation and advancements in transportation like canals and railroads allowed farms to develop further from rivers and helped transport agricultural products more efficiently.

Explanation:

During the earliest years of agricultural development, irrigation allowed farms to be farther from rivers. This technological advancement, along with dams and aquifers, increased the potential for farming by opening up millions of acres of land that was previously unsuitable for agriculture due to aridity. As societies evolved, the development of complex transportation networks including canals and railroads facilitated the movement of agricultural products and connected rural areas with burgeoning urban centers, further transforming the agricultural landscape.

How are sills and lapoliths similar?

A. Both form long, horizontal shafts.
B. Both form from magma that flows horizontally.
C. Both solidify into a saucer shape.
D. Both form the cores of mountains.

Answers

Answer:

B. Both are formed from magma that flows horizontally

Explanation:

Based on its position on the rock layer that is intruded, intrusive igneous rock body structure is divided into two parts, namely concordant and discordant.

A concordant is a deep igneous rock body that is parallel to the surrounding rock layers. The concordant has four forms, namely sill, laccolith, lapolith and paccolith.

Sill is a body of igneous rock that is parallel to the surrounding layers Lapolith is a frozen deep body shape that bulges in the lower layers while the upper layers remain flat.

So the equation is that they flow through or pass through the layers and move horizontally.

So the correct answer is B. Both are formed from magma that flows horizontally.

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- Sill

- Lapolith

B. Both form from magma that flows horizontally

Further explanation

We have known beforehand that magma is formed in the lithospheric layer which originates from friction between 2 plates in a subduction zone. Friction between the two hot plates is capable of causing the melting of rocks which then melt the rock into a magma kitchen. Magma which has high temperatures and also high pressure will always go to places that have lower pressure on the surface of the Earth.

So from that the effort of magma to get out or go to a place that has a lower pressure is known as intrusion and extrusion of magma. The word extrusion is the process of the discharge of magma from the kitchen of magma to the surface of the Earth. While what is meant by intrusion is the process of a breakthrough of magma into the Earth's crust or listosphere but it does not reach the surface of the Earth.

Forms of Magma Intrusion

Magma intrusion, which is one of the activities carried out by magma, according to its type, intrusion of magma is divided into several types of magma intrusions which certainly occur under the surface of the Earth. The forms of magma intrusion include the following:

Batolit Lacolite Sill Diaterma  

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Class: middle school

Subject: geography

Keywords : magma, activities, friction

help me out please please.......​

Answers

Answer: The correct answer is B isostatic equilibrium

Explanation:

Isostasy is a state of balance or equilibrium between the lithospheric plate and the underlying mantle, the asthenosphere. Due to the weight of the lithosphere, part of it sinks into the plastic asthenosphere and settles to an equilibrium position. This is what causes changes and differences in elevation on the earth.

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The sum of 5 consecutive even numbers is 310. What are the numbers? The distance between two cities is 500 miles. On a map, they are 4 inches apart. What is the scale of the map? 9 is subtracted from 5 times 3 and 10 is added Which statement is true? Cassius desire for fame and brutus patriotism for rome is the central conflict of the play and reflects the theme of publicity. Caesars increasing power and the conspirators fear of tyranny is the central conflict of the play and reflects the theme of ambition. Calpurnia and caesars marriage is the central conflict of the play and reflects the theme of misconception. Portia and brutus marriage is the central theme of the play and reflects the theme of honor. 11-30x+24. what is this answer HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP When current is flowing in an ordinary metal wire, the magnitude of the average velocity of the electrons is closest toa) 10 m/sb) the speed of lightc) 10 microns/sd) 1 km/se) 1 m/s HELP ME PLEASE!!!!I BEGG YOUUUU PLEASE IM STUCK!!! Male and female students were surveyed about dancing and playing sports. They had the following preferences: Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 0.25 0.27 0.52 Female students 0.17 0.31 0.48 Column totals 0.42 0.58 1 Which of the following is a two-way conditional frequency table for gender? (2 points) Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 0.48 0.52 1 Female students 0.35 0.65 1 Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 25% 27% 52% Female students 17% 31% 48% Column totals 42% 58% 100% Do you prefer dancing or playing sports? Playing sports Dancing Male students 0.60 0.47 Female students 0.40 0.53 Column totals 1 1 Do you prefer dancing or playing sports? Playing sports Dancing Row totals Male students 50 54 104 Female students 34 62 96 Column totals 84 116 200 Christian religions proved attractive in some parts of africa because A simple pendulum consists of a point mass suspended by a weightless, rigid wire in a uniform gravitation field. Which of the following statements are true when the system undergoes small oscillations?Check all that apply.The period is inversely proportional to the suspended mass.The period is proportional to the square root of the length of the wire.The period is independent of the suspended mass.The period is proportional to the suspended mass.The period is independent of the length of the wire.The period is inversely proportional to the length of the wire. Helpppppppppppppppppp Which of the following statements are true about water?Water is the least important nutrientWater is important in helping things flow through the body.Water aids in the body's heating systemDrinking caffeinated beverages is a good source of water replacement in the body Solve the equation for x. If a solution is extraneous, be sure to identify it in your final answer. Square root of the quantity x-6 end quantity - 4 =x Which is a common misconception about seat belts? Describe the differences in biodiversity between the tropical rainforest and the arctic tundra. A number increase by 7 is greater than 30 Please help Last Question!!! The following question is based on your reading of A Midsummer Nights Dream by William Shakespeare. Which of the following best describes Hermias physical appearance? a. Short and blond c. Tall and blond b. Short and brunette d. Tall and brunette Please select the best answer from the choices provided A B C D Particles are arranged in a crystal structure in a sample of Steam Workshop Downloader