Question

Which of the following describes why wetlands are so important to the water cycle?

a. dense vegetation helps filter out pollutants in the water
b. open meadows help to filter out water pollutants in water
c. dense vegetation allows for biological magnification in the water
d. open meadows allow for biological magnification in the water

Answer 1

a. dense vegetation helps filter out pollutants in the water. Plants that grow in wetlands remove nutrients and pollutants in the water, including rainwater, waste water and runoff before it enters bodies of water.