As water moves through the water cycle, the total amount of water on Earth * increases
decreases
stays the same
fluctuates with the seasons

Stays the same

Explanation:

The amount of water on the earth never leaves or runs out, so there will always be water. When water disappears, its just the process of evaporation. When water is evaporated into water vapor (gas state of matter), and the molecules are scattered through the air. Making the air humid, although you can not see the molecules, not even with a microscope.