Question

V The flooding in watersheds can be best prevented by______________________. A) fertilizer runoff B) urban development C) deforestation of vegetation D) native plants with deep roots The flooding in watersheds can be best prevented by______________________. A) fertilizer runoff B) urban development C) deforestation of vegetation D) native plants with deep roots

Answer 1

The correct answer is D) native plants with deep roots. The roots break the hard pan in the soil thus water infiltrates into the ground. Stagnant water on the surface is thus drained into the lower levels of the soil profile.

Answer 2

Answer:

The correct option that could fill the blank is:

D) Native plants with deep roots.

- The flooding in watersheds can be best prevented by native plants with deep roots.

Explanation:

The hydrographic basins, being an area which is drained by a natural system, is constantly exposed to possible flooding if, during the course of the water body, you do not find enough vegetation that helps in two fundamental aspects:

1. It reduces erosive capacity by the water body or the wind, preventing the collapse of the edge and the consequent flooding of the land.
2. In the case of native plants with deep roots, it allows a greater grip of the land and allows the absorption of water and its gradual delivery, which not only prevents possible flooding, but also prevents absolute drought in summer.