Other final topics Flashcards by John Masters | Brainscape

Q

how old is the earth?

A

4.56 billion years

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Q

how old is continental crust?

A

260 million years

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Q

how old is oceanic crust?

A

270 million years

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Q

what is the oldest evidence of complex life?

A

~3.7 billion years

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Q

average rate of plate movement

A

~10 cm/yr

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Q

types of plate boundaries

A

convergent
divergent
transform

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