Question

- - List three ways Earth is different today from when it was first formed.
- What does a greenstone indicate about the plate tectonic environment in which it formed?

Answer 1

-- Earth's crust is solid now
-- There are oceans now
-- There are organisms roaming the earth today.

- greenstones indicate metamorphosed volcanic belts

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Answer 2

Sure it helped alot !!!!! Thank you soo much @thomaster !!!!