Which step of the water cycle will begin after the rainstorm

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

The third stage of cellular respiration is (2 points)

Which of the following is a testable hypotheses?