What could people do to decrease erosion of the earth's surface? a) cut down more trees. b) use more land to plant crops. c) allow natural vegetation to grow. d) allow cattle to graze more often.

Hey there!

Your answer is C) Allow natural vegetation to grow.

A is incorrect because cutting down more trees increases erosion. Plants like trees reduce erosion by breaking the fall of a raindrop before it hits the ground.

This leads to D being wrong, since cattle eating the vegetation (grass) takes away the plants. Using more land to plant crops is incorrect because you have to clear the land before planting crops, and there is an amount of time where the land is bare, which increases erosion. By allowing natural vegetation to grow, the vegetation helps break the fall of raindrops thus decreasing erosion.

Hope this helps!

C) Allow natural vegetation to grow

Explanation:

The erosion has been becoming bigger and bigger problem, especially when it comes to the soil erosion. The main reason as to why the erosion rates have skyrocketed is the human activity. In order to satisfy their own demands and needs, the humans have often been destroying the vegetation, which acts as a natural protector of the soil.

Without the natural protection that the vegetation provides, the soil becomes exposed to erosion, so any rain, wind, or disturbance to it causes rapid loss of the top layer.

The method to stop the erosion, or at least minimize it, is to simply allow the natural vegetation to grow. Once the vegetation starts to grow, it makes the soil more compact with its root systems and hold it tightly. The vegetation also absorbs most of the water, and it provides cover from the winds.

If the natural vegetation can't not recover because the soil has been damaged very badly, than the humans can assist by planting plants that don't require much in order to grow and that can sustain extremes. From the trees the wild pistachios and wild apricots are good choices. The succulents are also a good choice for soils that have been badly damaged, as well as lot of plants from arid or semi-arid places, as they can thrive in bad conditions. Later, these plants will give the basis for other plants to be bale to grow.