Question

1. How does deforestation affect the water cycle?
a) It can alter precipitation patterns.
b) It increases the amount of transpiration.
c) It leads to an increase in eutrophication.
d) It reduces the amount of carbon dioxide in the atmosphere.

2. Which of the following statements about the water cycle is true?
a) Plants play a vital role in the water cycle.
b) Precipitation that falls to the ground ends up only as groundwater.
c) Organisms in the biosphere do not influence the water cycle.
d) The water cycle only continues during daylight hours.

Answer 1

3. A farmer has concerns about the nitrogen levels in her soils. What can she do to ensure that the nitrogen bacteria are replenished in the soil?
a) Plant more plants to increase transpiration.
b) Clear cut the area surrounding the field.
c) Plant a crop of mushrooms to speed up decomposition.
d) Plant a crop of legumes, such as clover or alfalfa.

Answer 2

The water cycle helps to renew the supply of clean, freshwater on earth.
True or false?

Answer 3

1.C

Answer 4

3. Plant a crop of legumes, such as clover or alfalfa.

Answer 5

true

Answer 6

Trees store and transpire great quantities of water; it's one of the reasons rainforests remain humid and wet. Take away the trees and that store of water is lost. Moisture cannot be returned to the atmosphere without the plants. Because neither water or nutrients can cycle in a forest ecosystem after the trees are cut down, extensive cutting can convert lush forests into deserts.

Another problem is that erosion occurs due to increased runoff (unabsorbed rainfall). Soil and plant material loosens and falls into the water. This can also contribute to flooding. If there's too much deforestation near the water, the soil will subside, because trees are what hold it in place.