Acid rain pollutes a lake and makes the water acidic, as a result, many aquatic plants in the lake die, How will the loss of these plants most likely affect the lake's ecosystem?

answer; hypnagogic sensations)

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )

i think this picture will you.