What impact can planting new trees have on the water cycle? a: More carbon dioxide is released into the atmosphere b: Transpiration increases
c: Condensation decreases
d: More water infiltrates into the ground

What is the source of energy for all biogeochemical cycles, including the water cycle?
a: winds
b: gravity
c: the Sun
d: volcanic eruptions

Which of the following statements about the water cycle is TRUE
a: Plants do not influence the water cycle
b: Precipitation that falls to the ground can end up as groundwater
c: The water cycle only continues during daylight hours
d: Once water flows into the ground, it is stuck there forever

Which of the following happens as a result of eutrophication?
a: excessive growth of algae b: increased bacterial growth c: decrease in oxygen levels d: all of the above