EARTH SCIENCE
TECTONICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All oceans are salty
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Igneous rocks are found on all continents
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Fossils of the same species of extinct land plants have been found in both South America and Africa
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Early humans migrated to North America over a land bridge from eastern Asia
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Detailed explanation-1: -One type of evidence that strongly supported the Theory of Continental Drift is the fossil record. Scientists have found fossils of similar types of plants and animals in rocks of similar age. These rocks were on the shores of different continents. This suggests that the continents were once joined.
Detailed explanation-2: -The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of ancient climatic zones.
Detailed explanation-3: -Lesson Summary. The continental drift hypothesis (introduced by Alfred Wegener in 1912) states that at one point in time, all of the continents were joined together as one large mass of land, then the land spread apart and drifted into their current positions.