Answer:
B. Rock Layers
Explanation:
The definition is a layer or a series of layers of rock in the ground.
Answer:
The chromosomes inroduces carbon factors
Explanation:
Answer:
Relative age only tells us the order in which events occurred, from the earliest to the most recent. Knowing the actual date of an event allows us to say exactly how old something is or how long ago it actually took place.
Explanation:
A population decrease in primary producers would affect the ecosystem negatively because everyone who ate the primary consumers would have a lack of food.
