- Where is Earth’s heat energy most concentrated?
- What is the best piece of evidence for plate tectonics?
- Which fossil would be most useful for evidence of a continental drift?
- What was the first evidence of continental drift?
- What did Earth look like before Pangea?
- What is the evidence for Pangea?
- Why was Continental Drift rejected?
- What is fossil evidence?
- What are 6 pieces of evidence that support continental drift?
- How are fossils evidence of continental drift?
- Are Continents still moving?
Where is Earth’s heat energy most concentrated?
Most solar energy is absorbed at the surface, while most heat is radiated back to space by the atmosphere.
Earth’s average surface temperature is maintained by two large, opposing energy fluxes between the atmosphere and the ground (right)—the greenhouse effect..
What is the best piece of evidence for plate tectonics?
Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed.
Which fossil would be most useful for evidence of a continental drift?
GlossopterisPossibly the most important fossil evidence found is the plant, Glossopteris.
What was the first evidence of continental drift?
The first truly detailed and comprehensive theory of continental drift was proposed in 1912 by Alfred Wegener, a German meteorologist. Bringing together a large mass of geologic and paleontological data, Wegener postulated that throughout most of geologic time there was only one continent, which he called Pangea.
What did Earth look like before Pangea?
But before Pangaea, Earth’s landmasses ripped apart and smashed back together to form supercontinents repeatedly. … Just like other supercontinents, the number of detrital zircon grains increased during formation and dropped off during breakup of Rodinia.
What is the evidence for Pangea?
Evidence of existence Fossil evidence for Pangaea includes the presence of similar and identical species on continents that are now great distances apart.
Why was Continental Drift rejected?
The main reason that Wegener’s hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth’s spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true.
What is fossil evidence?
Fossils are evidence of organisms that have existed. The fossils may consist of clues about the organism, such as its tracks or feces, or they may be a part of the organism, such as a bone or other body part. Fossils give scientists clues about the structure and lifestyle of the organisms.
What are 6 pieces of evidence that support continental drift?
What are six pieces of evidence for the continental drift theory? Reptile Fossils- dinosaurs couldn’t have swam across a vast ocean. Plant Fossils- all these regions were once connected and had similar climates. Tropical plants found in Arctic- tropical plants can’t grow in cold climates.
How are fossils evidence of continental drift?
There are many examples of fossils found on separate continents and nowhere else, suggesting the continents were once joined. If Continental Drift had not occurred, the alternative explanations would be: They swam to the other continent/s in breeding pairs to establish a second population. …
Are Continents still moving?
Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics. The continents are still moving today. … The two continents are moving away from each other at the rate of about 2.5 centimeters (1 inch) per year.