Which fact about fossils is MOST important to scientists who study evolution?
A) Fossils are often found in sedimentary rock.
B) Footprints, body structures, and even animal droppings can become fossilized.
C) The age of a fossil can be determined by examining the rock strata in which the fossil is found.
D) The formation of a fossil depends on the geologic and chemical conditions present when an organism dies.

Question

Which fact about fossils is MOST important to scientists who study evolution?
A)	Fossils are often found in sedimentary rock.	
B)	Footprints, body structures, and even animal droppings can become fossilized.	
C)	The age of a fossil can be determined by examining the rock strata in which the fossil is found.	
D)	The formation of a fossil depends on the geologic and chemical conditions present when an organism dies.