The solar
system formed when gravity began collapsing
a cloud of gas, rock, ice, and other materials.
Where did the gravity come from to initiate
this collapse? Explain.

Discuss how relative and absolute dating are used to assign ages to rocks. specifically, how are the two dating methods different from each other? discuss the technique of absolute dating commonly used to date rocks.

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

What is the border between layers a through f and layer g called?