Which pair of terms describes studies that give specific information about movement, behavior, and composition of ancient species? a. trace fossils and original material
b. camouflage and mimicry
c. mold and cast
d. embryology and comparative anatomy​

A because before used to be fossils.

Not shure just double check but from my side its A

Explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.