Continental drift was a theory that explained how continents shift position on Earth's surface.
Wegener believed that all the continents were once joined together in an "Urkontinent" before breaking up and drifting to their current positions. Many scientists disbelieved his theory, however, it did introduce the idea of moving continents to geoscience. Hence, it was determined decades later, due to his findings of rocks and fossils that spread throughout the continents, the past existence of a supercontinent had at one point joined all the world's landmasses as one. Pangaea was a supercontinent that formed roughly 200 to 250 million years ago, according to the U.S. Geological Survey (USGS) and was responsible for the fossil and rock clues that led Wegener to his theory.
Wegener knew that fossil plants and animals such as mesosaurs, a freshwater reptiles that were found only South America and Africa during the Permian period, could be found on many continents. He also matched up rocks on either side of the Atlantic Ocean like puzzle pieces. For example, the Appalachian Mountains (United States) and Caledonian Mountains (Scotland) fit together, as do the Karroo strata in South Africa and Santa Catarina rocks in Brazil.
Wegener's hypothesis of continental drift is supported by fossil evidence.
What is continental drift theory?According to the Theory of Continental Drift, the continents of the Earth move relative to one another and appear to be drifting over the ocean floor together.
During one or more geologic periods, continents moved horizontally at a huge scale in relation to one another and to the ocean basins. The theory of plate tectonics, which integrates this idea, had this idea as a key antecedent.
The fossil record is one sort of evidence that has been used to support the Theory of Continental Drift. In rocks of similar age, scientists have discovered fossils of related plant and animal species. The coastlines of many continents were home to these rocks.
Learn more about continental drift theory, here:
https://brainly.com/question/15269125
#SPJ6
what evidence do scientist find in the fossil record that suggests there was a big extinction event that occurred 66 million years ago?
Scientists continuously find fossilized bodies of dinosaur bones that all appear to have died the same way. It is because of these discoveries that we know that dinosaurs and other pre-historic species existed on Earth 66 million years ago.
The evidence that points to the fact that there was a big extinction about 66 million years ago lies in the fossil records themselves.
Records and evidence show that for an estimated two hundred and thirty million years, Earth was home to lots of dinosaurs. Fragments of their skeletons such as teeth, bones, etc have been found on fossils which corroborates this position.
The interesting thing however is that when subjected to radiocarbon dating none of the dinosaur remains were in age, less than 66 million years. This can only mean that there was a massive catastrophe that wiped out life as it existed then.
There is also some evidence that suggests that a huge asteroid impacted the earth at that time causing the extinctions.
Learn more about the mass extinction here:
https://brainly.com/question/7869650
which of the following statements can be made about the parallelogram shown below note that the figure is not drawn to scale
I don't see the scale or parallelogram sorry I can't help you.
Answer: It is a rhombus.
Explanation:
image below:
Tundra ecosystems are considered to be fragile because of
Answer:
Tundra ecosystems are considered to be fragile because the short growing season.
Explanation:
Hope this helps
Answer:
low biodiversity
Explanation:
why do people think the earth is flat?
There's no actual awnser but maybe someday we can go through ones mind and see why they don't like the truth
there’s like no real answer lol. they just want to prove a point that everyone is wrong. or maybe since we don’t see any curves or round edges when we walk
This food chain can be found in the coastal waters of Virginia
hope this helps mannnnnnnnnnnnnnnnnnnnnn
DAMEFISH would be your correct answer
what conditions create the largest waves in the ocean enter your answer in the space provided please help !!!
fast-moving wind over smooth water
:)
Answer:
Moving winds on the surface of the ocean creates waves in the ocean.
The gravitational pull of the Moon causes the largest tides in the ocean.
Explanation:
Generally, the most common factor that causes the largest waves in the ocean is winds. this is also called wind-driven waves of the ocean when the surface wind flows on the surface of the ocean, this disturbance creates the friction between surface wind and surface of the ocean which creates waves in the ocean.
sometimes these winds create larger waves in the ocean but it depends on two factors such as "wind speed" and "wind duration".
The faster the wind, the larger the wave.
Which object would have a larger gravitational force acting upon it
Answer
Hi,
An object with the largest size will have a large gravitational force acting on it. Explanation
The gravitation force increases with increase in size of an object. An object that has twice as much mass will exert two times as much gravitational pull on other objects. An object with greater mass attracts the earth more strongly that the other one with smaller mass. On the earth’s space, the more massive objects will exert stronger gravitational forces.
Best wishes!
A new organism is discovered. what characteristics would you look at to properly classified the unknown organism? include at least 3 characteristics in your answer.
There are some characteristics that scientists considered before they classify organisms, these characteristics include the following:
1. The number of cell present in the organism: on the basis of number of cell, an organism can be classified as a prokaryote or an eukaryote.
2. Mode of feeding: an organism can be categorized as an autotroph or a heterotroph based on the way it obtains its food.
3. Mode of reproduction: an organism can be classified as sexual or asexual based on the method it uses to reproduce its offspring.
Answer:
Regenerative disconnection, just as ordered and hereditary contrasts, can be utilized to find and arrange new species. Three attributes are the quantity of cell present in the living being: based on number of cell, a creature can be named a prokaryote or an eukaryote.
The method of feeding: a life form can be arranged as an autotroph or a heterotroph dependent on the manner in which it gets its food, and finally: method of proliferation: a creature can be delegated sexual or agamic dependent on the strategy it uses to replicate its posterity.
Explanation:
Describe two ways geologists can determine if two layers of rock in different locations formed at the same time.
Radioisotopic dating and relative dating.
I need help ASAP!!!!!!!!!!!!
Testes
what is the function of mRNA?
Messenger RNA (mRNA) carries the genetic information copied from DNA in the form of a series of three-base code “words,” each of which specifies a particular amino acid. Transfer RNA (tRNA) is the key to deciphering the code words in mRNA
Answer: It acts as the intermediate between the genetic information of DNA and amino acid sequence of protein.
Explanation:
The mRNA contains the codons that are complementary to the sequence of the nucleotide on the template strand of the DNA.
Then with the help of the ribosomes and tRNA it directs the formation of amino acids.
It carries the genetic information hence, called as messenger RNA. The molecule of the mRNA is made of single strands of the adenine, cytosine, guanine and uracil kept together by sugar phosphate backbone.
The planets closest to the Sun are the inner, or terrestrial, planets and are similar to Earth in some ways. They are rocky and dense, have few moons, no rings, and are relatively small. These planets also differ in many ways, as shown in the chart. For example, Venus is the hottest planet on the chart, even though Mercury is closer to the Sun. The temperature difference between Venus and Earth is significantly greater than the difference between Venus and Mercury, even though Venus lies close to midway between those two planets. Which statement elaborates on the cause of this wide range of temperatures between terrestrial planets?
The correct answer is - the atmosphere.
All of the terrestrial planets have atmospheres, but all them differ in their composition and density too. Venus has the highest temperature of the terrestrial planets, higher even then Mercury despite being closer to the Sun, because it has very dense atmosphere. Also, the key moment with the dense atmosphere of Venus is that it is mostly composed of carbon dioxide. The carbon dioxide is a gas that has the ability to trap the solar radiation into the atmosphere, so the more there is from this gas, the hotter it will be, and Venus has exactly that.
Answer:
Its A
Explanation:
i just done it, and it was a
which area would have the highest salinity
Answer: high rates of evaporation
Salinity is the measure of amount of salt dissolved in the water. The area with a plenty of run off will have very low salinity as the run off will take away the surface particles might be containing salt in it. The area with high rates of precipitation will have very low salinity this is because of the fact that the rainfall will take away the salts present on the surface to other location because of water erosion.
The area with high rates of evaporation will have highest salinity because the water or other liquid components gets removed from the surface leaving behind all the solid sediments which may also include salts.
Place the steps of the respiration process in the correct order
1) Pulmonary Ventilation
Movement of air in and out of the lungs passage (Thorax and Diaphragm).
2) External Respiration
Exchange of gases between air and blood at pulmonary capillaries (Alveoli).
3) Transport of gases through blood vessels
O2 and CO2 carried in blood associated with RBC's.
4) Internal Respiration
Exchange of gasses between blood and body cells at systemic capillaries. O2 out of the blood, CO2 into the blood.
5) Cellular Respiration
Breakdown of molecules at mitochondria within cells to form ATP, this uses up oxygen and produces CO2 as a by-product.
Answer:
(1) Air enters the nostrils.
(2) Air passes through the trachea to the bronchi.
(3) Air diffuses from the alveoli to the blood cells.
(4) Oxygen enters the blood cells.
(5) Blood transport oxygen to other cells.
Explanation:
The steps of respiration process are:
(1) Breathing or air inhale and exhale also called pulmonary ventilation.
(2) External respiration: external respiration exchanges gas between the lungs and the blood stream. Oxygen is exchanged for carbon dioxide waste to the process called external respiration.
(3) Internal respiration: In this process gases are exchanged between the blood stream and body tissues.
(4) Cellular respiration: It is a process in which sugar breakdown into a form that the cell can use as energy.
FILL IN THE BLANKS
1.When waves travel through water, they do not take ____ with them?
2. Tsunamis are sometimes called tidal waves, and are different from surface waves:they are usually called by? _____
3.What do you call the circular patterns in which the worlds 4.oceans travel?____
What body of water can these patterns be compared to?____
1. Medium
2.underwater earthquakes, volcanic eruptions, or landslides.
3.In each ocean basin there is a roughly circular current flow called a gyre. The world's oceans travel in well-defined circular patterns called currents which flow like rivers.
I hope this helps!!!
Water particles
Explanation:Water waves are a case of waves that include a blend of both transverse movements and longitudinal movements. As a wave goes through the falter, the particles travel in clockwise circles. The range of the circles diminishes as the profundity into the water increases.
2. Answer:Gigantic waves
Explanation:When large amount of water is shifted from its original place due to change in position of earth plates.
3. Answer:Gyre
Explanation:The circular pattern of travelling of ocean is called as gyre. Such type of patterns are formed in water body such as ocean.
Give one example of a question that science could test. Then, explain in your own words why it is an example of a scientific question.
Help? Lol.
The example of a testable scientific question is as follows:
One that comprises two variables such as the independent variable and the dependent variable.
What Is a Scientific Question?Scientific Question is refer to as the which must have objective, and they must be testable. This means that the answer to a question must be able to be proven true repeatedly.
Does the angle of a walk change the distance a toy car will travel?
This question comprises independent variable (ramp angle) and dependent variable (distance the car travels).
For more information regarding Scientific Question, visit:
https://brainly.com/question/2349335
#SPJ2
why is counting the release of oxygen bubbles a valid way to measure the rate of photosynthesis
Measuring photosynthesis via the production of oxygen. Oxygen can be measured by counting bubbles evolved from pondweed, or by using the Audus apparatus to measure the amount of gas evolved over a period of time.The emerging bubbles are either simply counted or they are recorded using light barriers, which is very difficult because of their small size and often varying ascent rate. The gas bubbles generated during photosynthesis by aquatic plants produce distinctive sound pulses when leaving the plants.
Photosynthesis, a process where plants convert carbon dioxide and water into glucose and oxygen, releases oxygen. This release can be measured by counting the oxygen bubbles produced, giving a general measure of the rate of photosynthesis.
Explanation:Counting the release of oxygen bubbles is a valid way to measure the rate of photosynthesis because photosynthesis is a process in which plants convert carbon dioxide and water into glucose and oxygen. This process requires light energy, which is absorbed by a green pigment called chlorophyll. As the photosynthesis process occurs, the production of oxygen can be visually observed through the formation of oxygen bubbles especially when the plant is immersed in water.
During photosynthesis, for every carbon atom converted into carbohydrates, hundreds of water molecules are released, meaning photosynthesis also results in oxygen being released into the atmosphere. This oxygen can then be measured by counting the number of bubbles that are produced over a certain period of time. The more bubbles observed in a given period, the higher the rate of photosynthesis.
It's important to note that while this method provides a general measure of the rate of photosynthesis, it doesn't provide a precisely accurate measure as a multitude of factors such as light intensity, temperature, and carbon dioxide levels can also influence the rate of photosynthesis.
Learn more about Photosynthesis here:https://brainly.com/question/29764662
#SPJ3
Mosses are classified as bryophytes. Which best describes mosses?
Mosses are classified as bryophytes. The statement that best describes mosses is; mosses are seedless plant. Hope this helps
Source-Wiki
Answer:
The answer is A
Explanation:
the term used for a geographic location's height above sea level is?
The geographic term is elevation
some individuals produce more offspring than others. which term describes this odservation?
Differential reproduction.
Which of the following pairs are isotopes of the same element
5452165256+6216510680498
The correct pair of isotope is [tex]_{6}^{12}L , _{6}^{14}L[/tex], the correct option is C.
What are isotopes?Isotopes are members of an element family that have the same number of protons but differ in the number of neutrons.
The correct pair of isotope is [tex]_{6}^{12}L , _{6}^{14}L[/tex].
Thus, the correct option is C.
For more details regarding isotopes, visit:
https://brainly.com/question/11680817
#SPJ2
The missing part of question is attached below as image.
Which of the following countries currently uses the English System?
A) United States
B)France
C) England
D)Canada
What kind of muscle tissue lines the blood vessels?
The answer to your question would be "smooth muscle" I hope this helps.
I need the answers to these please helppppp!
The flow of electricity is an ______.
Answer:
electric current
Explanation:
what are some helpful tips on insomnia?
The following things may help you
Explanation:Exercise regularlyLimit activities in bed like using mobile phoneWake up at the same time each day.Do not eat or drink right before going to bed. Eliminate alcohol and stimulants like nicotine and caffeineMake your sleeping environment comfortable. Get all your worrying over with before you go to bed.Which promotes a more sustainable use of resources
The answer would be A: Switching to solar electricity. The switch to solar electricity helps the environment and it as well saves some money.
A. Switching to solar electricity.
The point of using a "more sustainable resource" is to find one in which the resource can be replenished faster or at the same rate as it is used. This only leaves solar electricity, for the source (sun), will always be there for as long as we are alive. All the others take centuries to form, and is used faster than created.
~
Define Inflation theory
In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe. The inflationary epoch lasted from 10−36 seconds after the conjectured Big Bang singularity to sometime between 10−33 and 10−32 seconds after the singularity.
Inflation theory is a theory of exponential expansion of space in the early universe
Explanation:The term inflation means expansion and in Physics it refers to the explosively rapid expansion of space-time that occurred a tiny fraction of a second after the Big Bang. According to Big Bang theory the universe expands relatively gradually throughout its history. Inflation theory was developed around 1980 to explain several puzzles with the standard Big Bang theory.
What makes stars produce energy
Answer:
nuclear fusion
Explanation:
Which of the following shows an unsaturated fatty acid?
Answer:
C
Explanation:
Unsaturated fats that chains in their polymer chains as shown in the diagram in C. These kinks reduced the levels of compaction between adjacent polymer chains because they disrupt the hydrogen bonds between the chains . Therefore, the oils will not be solid at room temperature. This is why they are called unsaturated fats.
Answer:
Option (C).
Explanation:
Fatty acids may be defined as the compound containing long hydrocarbon chains with the carboxylic acidic group. Two main types of fatty acid are saturated and unsaturated fatty acid.
Unsaturated fatty acids contains the double and triple bond in its structure. The option (C) in the picture contains the carboxylic acid with long hydrocarbon chain and double bond in its structure.
Thus, the correct answer is option (C).
why do organisms perform mitosis
Mitosis plays an important part in the life cycle of most living things, though to varying extents. In unicellular organisms such as bacteria, mitosis is a type of asexual reproduction, making identical copies of a single cell. In multicellular organisms, mitosis produces more cells for growth and repair.
Mitosis is a process of cell division employed by organisms for growth, repair, and in some cases, asexual reproduction. During mitosis, a single parent cell divides to produce two identical daughter cells. These cells can replace damaged or dead cells and, in asexual reproduction, create genetically identical offspring.
Explanation:Organisms perform mitosis, a form of cell division, in order to facilitate growth, repair, and in some organisms, asexual reproduction. During this process, a parent cell divides to produce two identical daughter cells. These daughter cells function in different parts of the body, replacing dead or damaged cells, or may be involved in asexual reproduction, producing genetically identical offspring.
Only cells produced through meiosis, another form of cell division that results in sexual reproduction, serve to introduce genetic variation. However, mitosis is a simpler and less energy-consuming process compared to meiosis, thus making it a key cellular activity, especially in eukaryotes such as plants and animals. This helps organisms maintain their genetic consistency while still being able to grow, repair damaged cells, and reproduce.
For instance, in multicellular organisms, the cell cycle involves the phases of interphase and the mitotic phase. During the mitotic phase, the duplicated chromosomes are distributed into daughter cells—each genetically identical to the parent cell, allowing consistent growth and repair across the organism.
Learn more about Mitosis here:https://brainly.com/question/9809645
#SPJ3