Which phrase best describes a point source of water pollution?

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

What would most likely happen if a person increased the amount of saturated fat in his or her diet? the person's risk of cardiovascular disease would increase. the person's risk of cardiovascular disease would decrease. the person's bad cholesterol would decrease. the person’s good cholesterol would increase.

9. the history of life on earth is recorded in