It has been theorized that all of the modern continents on Earth were once part of a single continent. What scientific evidence is used to support this theory?
1) Fossils of similar lifeforms have been found on different continents.
2) The coastlines of some modern continents appear to have once fit together.
3) Some of the continents that exist today have similar types of rocks.
Which on is it?
Answers: 3
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