Question

I am struggling with these two questions I have looked all over the internet && even my science book but still no answers...thank you to anyone that can help. ♥

What is unique about Earths position in the Solar system as it relates to water, and why is this important?

&&

What are two things useed for determining how a rock is formed?

thank you
teri

If Earth were further away, the water would be cool enough to be frozen, closer, and it would vaporize.