Explain how Wegener used ancient glacier evidence to support his continental drift hypothesis
How was he able to account for lush tropical environments in North America, Europe, and Asia during the same time period of glaciation as South America, Africa, and India?
What will be an ideal response?
Answer: Since Wegener was a meteorologist he was able to reconstruct ancient glacial environments by observing evidence of vast ice sheets (and possibly glacial till and striations) on the Southern Hemisphere continents. During this same time (300 million years ago) the Northern Hemisphere continents where positioned at higher latitudes near the equator, where many swamps and coal deposits formed.
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Tsunami are usually caused by
A. earthquakes. B. Milankovich cycles. C. global warming. D. Earth's changing orbit.
If the tide-producing force is proportional to G × M/R3, then the Moon exerts a greater tide-raising force than the Sun due to the difference in their masses rather than a difference in their distances from the Earth.
Answer the following statement true (T) or false (F)
What was NOT a characteristic of cities during the era of feudal society?
A) Cities over 10,000 people were rare. B) Commercial and residential districts were separated. C) They were densely populated. D) They were unsanitary. E) They were often surrounded by walls.
Poland has a long-standing history of working to oppose the Communist domination of its country.
a. true b. false