7.Which of the following is NOT an effect of soil erosion?
C.Decreased crop yield
A.Reduced soil quality
B.Water pollution
D.Improved water quality
8. What can occur at the site or an area that is experiencing soil erosion?
C. Reduction in fertility of soil
A. Water pollution is cleared up
B. Natural disasters like landslide
D. Both B and C
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Sagot :

Answer:

7. D

8. D

Explanation:

Soil erosion decreases soil fertility, which can negatively affect crop yields. It also sends soil-laden water downstream, which can create heavy layers of sediment that prevent streams and rivers from flowing smoothly and can eventually lead to flooding. Once soil erosion occurs, it is more likely to happen again.