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Geographic Isolation.Geographic isolation refers to a situation where a physical barrier such as a river or a mountain divides a population of species into two or more groups allowing each group to diverge along separate evolutionary paths. <span>
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The three different types of rock are :
1) Igneous 2)metamorphic and 3)sedimentary
It has a thick atmosphere of hydrogen and helium
Answer:
The major difference between the two is that tortoises dwell on land, while turtles live in the water some or nearly all of the time.
Explanation:
https://www.diffen.com/difference/Tortoise_vs_Turtle