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arsen [322]
3 years ago
12

A region experiences frequent landslides from heavy rains. How can the local residents lower the frequency of landslides in the

region?
a Start contour plowing on the slopes where landslides happen.

b Plant vegetation on the slopes that experience landsides.

c Encourage deforestation in the regions that haven’t suffered landslides.

d Divert water so it flows into the affected region.

e Reduce the slopes where landslides occur.
Biology
2 answers:
cestrela7 [59]3 years ago
6 0

Answer: There are two possible effective choices

A. Start contour plowing on the slopes where landslides happen.

E. Reduce the slopes where landslides occur.

Explanation:

Plowing can help flow water through the slopes instead of it all building up in one area all at once. But reducing the slopes can slow landslides due to the smaller incline, but will not completely get rid of them.

IrinaK [193]3 years ago
6 0

Answer:

Option (B)

Explanation:

The landslides refers to the downward motion of particles such as rocks, soils along with the presence or absence of water due to the influence of gravity. The factors that are responsible for occurring landslides are-

(1) Rainfall

(2) Slope angle

(3) Vegetation cover

(4) Gravity

The rainfall when occurs in excessive amount, it washes away all the debris that are present along the slope. Rapid flow of water erodes the materials as a result of which landslide can take place.

The slope of the land plays an important role in the occurrence of landslide. A steeper slope with less resistant rocks are more prone to landslide. Gravity highly influences the particles to move downward due to the presence of a steeper slope.

The vegetation cover also plays a significant role in controlling the landslide. The plants and trees that are present along the steep slopes has the ability to transmit the water into their roots that are at a certain depth. This allows the soil to remain stable.

Thus, the presence of extensive vegetation cover in these areas can prevent from occurring landslide.

Hence, the correct answer is option (B).

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