By relating a rock sample to the fossil record, geologists can identify which characteristic of the sample?
a. relative age
b. absolute age
c. energy content
d. chemical composition

What is the thickest layer of earth called?

The caste system in india was used for what purpose? a) to ensure that all people had an adequate income b) to prevent the rich from taking too much power c) to provide social control and conformity according to one’s birth d) to draft a military capable of defending india from mongol invasion

Seasons are a result of: a.) earths rotation on its axis b.)earths tilt on its axis c.) global air circulation patterns d.) global humidity circulation patterns