Question

Observed by many scientists throughout history but not publicly developed until the early 20th century, the theory of continental drift proposes that Earth’s continents have been slowly moving for millions of years and are still moving today. This idea was starkly different from the earlier, widely accepted idea that continents and oceans were fixed in their present positions. However, scientists observed the following evidence that supports this theory:

The shapes of continents fit together like puzzle pieces.
Geologic features on one continent line up with geologic features on a different continent.
Fossils of the same plants and animals were found on different continents.
The maps show Earth 225 million years ago and in the present day.



image.png



The table describes some characteristics of Antarctica today.



Average Temperature –40° F
Average Months of Sunlight 8
Average Ground Surface Frozen




Scientists have found soil evidence that suggests swampy rainforests existed on the continent millions of years ago. What can scientists conclude based on this evidence?


Swampy rainforests once survived in frozen ground.


Antarctica was once located in a much colder climate zone.


Antarctica was once located in a much warmer climate zone.


Swampy rainforests once survived without consistent sunlight.

Answer 1

Antarctica was once located in a much warmer climate zone.

Reason: swampy rainforests require warm, wet conditions and sunlight, so finding their soil in Antarctica indicates the continent used to be in a warmer climate (supporting continental drift).