Question 13 (1 point) The population of the world is larger today than it ever has been in the past.
O True
O False

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Which phrases describe oxygen's roles in earth’s atmosphere? check all that apply. allows fuels to burn forms clouds that produce rain is the gas that animals breathe is used by plants to produce food forms ozone that absorbs the sun's harmful rays

Explain why ocean water levels do not change very much, even though precipitation happens so often.