Answer:
The isotope you would use to date a fossil from paleozioc era is the 47 billion years half-life 87rb as the paleozoic era dates from 540 to 248 million years ago.
Explanation:
Sometimes geologists need to estimate older fossils, like the ones from the paleozoic era which is the oldest of the three eras.
Carbon-14, the radioactive isotope of carbon used in carbon dating has a half-life of 5730 years, so it decays too fast and it is useful to date fossils younger than about 75,000 years.
To date most older fossils and to estimate how long ago rocks formed, geologists use unstable radioactive isotopes of elements, decaying at constant, and this is called radiometric dating, rocksadiometric dating or radioisotope-dating of igneous rocks or ash located above, below or around the fossil vecinity.
Fossils are the remains and impressions of dead organisms like plants and animals that lived a long time ago in the geographical timeline.
The isotope used to date a fossil from the Paleozoic era will be 47 billion years half-life Rb- 87.
The geographical timeline 541 million years ago after the Cambrian explosion was known as the Paleozoic era. The oldest era is the Paleozoic era and to date, the fossils from that era isotope of Rubidium (Rb) should be used.
The isotope of carbon C-14 has a half-life of 5730 years only that will decay too faster while the isotope of rubidium has a half-life of 47 billion years that will make it best to date fossils from 500 million years ago.
To date fossils from a different era, geologists use radioactive isotopes and this is known as radioisotope dating of rock and radiometric dating.
Therefore, the isotope Rubidium-87 will be used.
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difference between local time and standard time
Answer:
Difference Between Local Time and Standard Time
local time vs standard timeLocal time implies the time of a particular country, as regards the meridian running through it. On the contrary, standard time is referred as the official local time of a region ascertained by the distance from the Prime Meridian of the meridian running through the area. Here we’ll break down the significant differences between local time and standard time.
Explanation:
the majority of austalians live in
Answer:
New South Wales
Explanation:
Answer:
New South whales
Explanation:
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Observing a planetoid orbiting far from the sun, astronomers notice that the object slows down in its orbit in a way they did not expect. Which is a reasonable conclusion?
a) The planetoid is slowing due to friction.
b) The planetoid is being repelled by something.
c) The planetoid is being attracted toward another massive object.
d) The planetoid is beginning to change its type of orbit.
Answer:
c) The planetoid is being attracted toward another massive object.
Explanation:
We can rule out a, the planetoid is travelling through space, friction is effectively nonexistent. B can be ruled out as well, as there is nothing in space that could naturally repel a planetoid. D is also implausible, as the question says the planetoid slows down for a certain period in its orbit, suggesting this behavior is repeated. Option c is incredibly likely, as the planetoid is far from the sun, a large mass, possibly far smaller than the sun but also far closer to the planetoid, could have the effect described in the question.
Answer:c
Explanation:
Which food is not a staple of the Indian diet?
rice
lentils
wheat
meat
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The question is:
Research and find out what causes flooding and explain What are the physical factors and the human factors that cause flooding from rivers?
Causes of flooding:
Soil that's dry or compacted.Rock that doesn't let water go through (Impermeable).Raining for longs periods of time.Melting large amounts of snow.Soil that's already wet which causes the water to not pass.Two main human factors that can cause flooding is deforestation and urbanization. The deletion of trees increases the amount of water that flows while having lots of trees decreases the amount of water that passes. Urbanization makes the land impermeable which causes the water not to pass and flood.
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How is it possible to distinguish a basin from a mountain on a topographic map?
Answer:
yes
Explanation:
because the more the lines are stacked together, the more the altitudes would increase. Therefore, the map would show either many lines to represent a mountain or more distant lines for a basin.
Basins and mountains on a topographic map can be distinguished by the arrangement of their contour lines. Mountains have closer lines indicating a steep incline, while basins have more spaced-out lines signifying a depression.
Explanation:On a topographic map, a basin and a mountain are distinguished by the patterns of their contour or isoline representation. These represent lines of equivalent gravitational potential energy per unit mass, or rather, lines of equal elevation.
A mountain would show contour lines that grow increasingly close together as you move toward the peak. This signifies a steep gradient or incline, like a hill. An example of this could be Olympus Mons, the highest mountain on Mars as indicated on topographic maps of the planet.
On the other hand, a basin generally shows contour lines that are more spaced out, indicating a depression in the land, or areas with lower gravitational potential energy. In the Mars Map from Laser Ranging, the Hellas basin, which has the lowest elevation on Mars, is depicted this way.
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Country that taxes heavily in order to provide for the health and wellbeing of its citizens.
A student drew the following flowchart to show the movement of nutrients through Earth's spheres
Soil -> Plants -> Animals -> Air
Which process directly moves nutrients from plants to the air?
A. Transpiration
B. Photosynthesis
C. Assimilation
D. Percolation
The process which directly moves nutrients from plants to the air is Transpiration option(a) is correct.
What is Transpiration?Transpiration in simple words we can say that it usually involves the loss of the water vapor through the stomata of the plants.
So the process from soil to plants and animal and air and which leads to nutrients actually move is known to be as the Transpiration.
Therefore Option(a) is correct.
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Which of the following was not a human race cause of increased tsunami destruction?
a. Destruction of the coral reefs for shipping lanes and shrimp farming
b. Elimination of coastal mangroves for housing
c. Elimination of coastal sand dunes
d. None of the above
Answer: D - None of the above
Explanation: All of the above are human activities that can and have increased tsunami destruction.
Which of the following statements best characterizes how developed and developing countries impact the environment?
A Neither developed nor developing countries have had a significant impact on the environment in the
past century.
B. Developed countries have tended to improve the environment, while developing countries have
tended to damage it.
C. Developed countries have damaged the environment, while developing countries have had little
impact
D. Both developed and developing countries have had significant negative impacts on the environment
Please select the best answer from the choices provided
Mark this and retum
•
Save and Exit
Submit
here to search
Answer:
The answer would be D, Both developed and developing countries have had significant negative impacts on the environment
Explanation:
Answer: Your answer would most likely be D:
Explanation:
It is true no copyright
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Trees are being cut down for lumber in the Amazon. In addition, new farms and factories are beginning to replace the forests and villages. What is an effect of this human activity?
Answer: an effect of deforestation is a decrease in wildlife. animals living in the amazon require trees in order to eat (animals like prey who eat leaves from trees) if these animals are left without food they will die from starvation and eventually go extinct. these animals who are preyed on by predators will cause the predators to have limited food sources due to their prey going extinct.
__________ law is civil law based on Islamic beliefs.
Which of these best describes Taipei has a population of over 3.5 million people and is the largest city in Japan an incredible vibrant metropolis located in the city of Japan the capital of South Korea east of the Himalayan mountains once known as Taiwan located to the east of Hong Kong
Taipei has a population of over 3.5 million people once known as Taiwan located to the east of Hong Kong.
Answer: Option D
Explanation:
Taipei is the capital of Taiwan- a state located to the East of China and bordered by Hong Kong at its East. Although Taipei is used to describe the metropolitan area, it can be used to describe the name of the entire city as well.
Taipei is home to a lot of electronic industries and a hub for major financial corporations. It is also home to Taipei 101- one of the largest skyscrapers of the world.
which is the biggest planet in our solar system
Answer:
jupiter is the biggest planet
Answer: JUPITER
Explanation:
Largest Planet: Jupiter
The largest planet in our solar system by far is Jupiter, which beats out all the other planets in both mass and volume. Jupiter's mass is more than 300 times that of Earth, and its diameter, at 140,000 km, is about 11 times Earth's diamete
Practice using undefined terms in definitions and w
analyzing diagrams.
Asignment
Which defines ray?
O a piece of a line with two endpoints
O all points equidistant from a given point
O two line segments with a common endpoint
O a piece of a line that starts at the endpoint and extends indefinitely in one direction
a ray defines a piece of a line that starts at the endpoint and extends indefinitely in one direction.
Answer: Option D
Explanation:
A ray in a mathematics is defined as a line going infinitely extending itself from one end point towards a direction. A ray doesn't have any particular width. It has no measurable length as it keeps on going forward.
The starting point of a ray is called as the endpoint. A ray is categorized by a line starting from a point crossing various points and moving forward which is normally represented by an arrow head. A ray is normally unidirectional
13. Which statement identifies an example of erosion?
A. The Colorado River cut through land to create the Grand Canyon
B. The Great Lakes are among the world's largest fresh water lakes.
C. Climate change may be causing the world's polar ice caps to shrink.
D. The Hawaiian Islands were formed by volcanic eruptions.
Answer:
A) The Colorado River cut through land to create the Grand Canyon
Explanation:
The powerful river causes erosion through hydraulic action as the force of the water buts pressure on the rock. Cavitation occurs when the river traps air in cracks in the rock to weaken it. Sediment carried by the rock can also speed up the erosion process by being used as a tool to scrape on the channel floor. This is known as abrasion. Some chemicals may be dissolved through a solution. This would cause vertical erosion on the original course of the river causing it to continuously move down and leave a canyon.
_______________ has been the most important source of revenue in the turnaround of the Russian economy.
Answer: Vladimir Putin
Explanation:
The most important revenue source for the Russian economy's turnaround has been energy.
Energy has been the most important source of revenue in the turnaround of the Russian economy. Russia's vast resources of oil and natural gas have significantly contributed to the country's economic growth, accounting for a large portion of export earnings and government revenues.
Evolution of the Landforms in the UAE
Objective: Describe the Evolution of landforms one the UAE.
Please create a KWL Chart for this
The land forms in United Arab Emirates are mostly deserts, coastal plains, Islands, mountains and no lakes or rivers.
Explanation:
Most of the area of the United Arab Emirates is a desert waste land area. It has large, rolling sand dunes, as the outer reaches of the Rub' Al Khali desert stretch into the country.
The coastal areas which are fronting the Persian Gulf are flat. There are also mountain regions forming a part of the land forms of the area. The Hajar mountains are the dominating landscapes in the north eastern area. The highest point of the country is 5,666 ft which known as the Jabal Yibir. In the off shore of the Persian Gulf, there are small islands located. There are no lakes or rivers in the United Arab Emirates.
7.3y−5.18=−51.9 what is y
[tex]y = - 6.4[/tex]
7.3y = 5.18 - 51.9
7.3y = -46.72
y = -(46.72 ÷ 7.3)
y = -6.4
list and describe. the layers of the earth surface
Which super continent forms the core of North America?
Answer:
South America
Explanation:
Answer:
Laurentia
Explanation:
Laurentia or the North American Craton is a large continental craton that forms the ancient geological core of North America. Many times in its past, Laurentia has been a separate continent, as it is now in the form of North America, although originally it also included the cratonic areas of Greenland and also the northwestern part of Scotland, known as the Hebridean Terrane. During other times in its past, Laurentia has been part of larger continents and supercontinents and itself consists of many smaller terranes assembled on a network of Early Proterozoic orogenic belts.
Which of the following characterizes a Stage 3 population?
produces many offspring
O lives in rural areas
experiences a sharp increase in crude death rate
O consists primarily of urban dwellers
Answer:
consists of primarily urban dwellers
Explanation:
Stage 3 populations on the demographic transition model correspond to advanced economies that enjoy good living conditions.
As a result of their high quality of life, Stage 3 populations live longer, have fewer children, live mostly in the cities, and have a birth rate that is very close to or even less than the death rate.
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Uruguay's economy is based on _____.
trade and manufacturing
generation of hydroelectric power
coffee cultivation and export
the production of meat, leather, and wool
Uruguay's economy is centered on the production of meat, leather, and wool, with agriculture, particularly livestock farming, forming a crucial economic foundation for the country.
Uruguay's economy is primarily based on the production of meat, leather, and wool. Agriculture, particularly livestock farming, is a key economic driver. The country has a strong tradition in beef production and is one of the world's top exporters of beef. Additionally, leather and wool industries contribute significantly to Uruguay's economic activities. While trade and manufacturing play a role in the economy, the production and export of agricultural products, especially in the livestock sector, are the cornerstones of Uruguay's economic foundation. This economic focus has allowed Uruguay to establish itself as a key player in global agricultural markets.
Which statement about the legislative branch is true
A. Can settle constitutional disputes
B. Can grant pardons of federal crimes
C. Can declare war
D.Can appoint federal judges
Answer:
is it C. can declare war.
Answer:
c
Explanation:
how does location climate phyical characteristics distribution of natural resources and population distribution impact southwest aisa middle east
The strategic location, arid climate, diverse physical features, abundant oil resources, and uneven population distribution of Southwest Asia and the Middle East significantly impact its economic development, political stability, and cultural practices.
Location and Climate:
Southwest Asia and the Middle East are located at the crossroads of Africa, Asia, and Europe, making it a strategic location for trade and cultural exchange. The climate is predominantly arid and semi-arid, with hot summers and mild winters. This climate limits agricultural activities and contributes to water scarcity, which is a critical issue in the region. The lack of precipitation has led to the development of extensive irrigation systems, such as qanats, to support agriculture.
Physical Characteristics:
The region is characterized by a variety of physical features, including vast deserts like the Arabian and Syrian deserts, mountain ranges such as the Zagros and Taurus mountains, and fertile river valleys such as the Tigris-Euphrates river system. These physical characteristics influence human settlement patterns, with populations tending to cluster around water sources and fertile land.
Distribution of Natural Resources:
The Middle East is renowned for its abundant oil reserves, which have a profound impact on the global economy and geopolitics. The presence of oil has led to rapid economic development in some countries, such as Saudi Arabia, Kuwait, and the United Arab Emirates. However, it has also resulted in political conflicts, foreign interventions, and economic disparities within the region. Additionally, the reliance on oil revenue makes these economies vulnerable to fluctuations in global oil prices.
Population Distribution:
Population distribution in Southwest Asia and the Middle East is uneven, with a high concentration of people in urban areas, particularly in countries with significant oil wealth. Rapid urbanization has led to the growth of megacities such as Cairo, Tehran, and Istanbul. Urban centers act as hubs for commerce, education, and political power. In contrast, rural areas often suffer from underinvestment and lack of services, leading to rural-to-urban migration and the challenges associated with managing urban growth.
In summary, the location, climate, physical characteristics, distribution of natural resources, and population distribution of Southwest Asia and the Middle East have shaped the region's history, culture, economy, and political landscape. These factors continue to influence the region's development and its interactions with the rest of the world."
Situation identifies a place by its what?
Situation identifies a place by its relative location, or how it relates to other places. This differs from a place's site, which refers to the place's physical attributes. Both concepts are integral to understanding a location's characteristics in Geography.
Explanation:A situation identifies a place by its relative location or its relation to other places. For example, you might describe the situation of a city as being north of another city, or along a river. This concept is different from a place's site, which refers to the physical attributes of a place itself, such as its landforms, climate, and availability of resources. In Geography, understanding both site and situation can help provide a comprehensive understanding of a location's characteristics.
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The life cycle of a star depends primarily on its mass with _______ stars burning their fuel more quickly. For nuclear fusion in stars to begin, the elements must undergo extremely high _______ and pressures. Elements heavier than hydrogen are scattered throughout the universe when a massive star explodes as a _______. All elements heavier than _______ are produced in the core of a red supergiant. The _______ spectrum emitted from a star changes as the star's temperature changes. Respond to the following based on your reading. Briefly describe why the mass of a star determines its fate after a supernova explosion.
Answer:1 bigger
2 temperatures
3. Supernova
4 helium
5 blackbody
6 once a massive star explodes as a supernova gravity compresses the remaining material into either a neutron star or a black hole. If the mass of the star is larger then gravity will be stronger, and the star is more likely to form a black hole
Explanation:
Answer:
1 bigger
2 temperatures
3. Supernova
4 helium
5 blackbody
6 once a massive star explodes as a supernova gravity compresses the remaining material into either a neutron star or a black hole. If the mass of the star is larger then gravity will be stronger, and the star is more likely to form a black hole
Explanation:
What is the meaning of Geography
In this lesson, we identified many uses of geography. One example is urban planning. How would geography be useful in helping to plan the future of a community? Give your response in the form of a short paragraph.
Geography is a mix of studying humans and the natural environment. Geography can help people to understand the bedrock and soil that buildings can be built on. It can help identify areas they are prone to natural disaster, such as flooding and landslides. By studying previous urban areas geography can show use the mistakes made in the past and how to prepare for the future with problems such as preventing traffic congestion. Understanding differ countries and cultures will also for a more diverse community to prosper in a time of globalization.
Canadian descendants of the first settlers from Asia are called
A. North American Asians
B. Bering Strait peoples
C. First Nation people
D. Anasazi
Answer:
B. Bering Strait peoples
Explanation: