When the guard cells close the stomata on the underside of plant leaves, it is in response to-- A). a reduced supply of oxygen
B). a long period of rainfall
C). little available water
D). the sun going down

it depends on how much it could carry.

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.