The doppler effect helps us know... Question 4 options:

How far away objects in space are

How large items in space are

Scientist believe that earths core is around 6000°c where does this heat come from

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.

The chemical or mechanical process by which rock is gradually broken down eventually becoming soil