Erosion!

1) Look at the false colour image on the left. Can you identify the areas in red and in brown? 

2) Which are mostly in danger of being eroded?

Answer: ___________________________
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3) Lack of vegetation increases the risk of erosion. This is because:
a)	The roots hold the soil together so it doesn’t wash away
b)	The cover reduces the force of impact of raindrops
c)	Both (a) and (b)
d)	Neither (a) or (b)

4) Which of the following factors does not contribute to soil erosion?
a) Slope
b) Elevation
c) Temperature
d) Atmospheric humidity
e) Vegetation
f) Wind force
g) Precipitation
h) All of the above contribute to erosion
5) How does soil erosion affect the top layer of soil?
a) It makes it more fertile
b) It keeps it moist
c) It washes it away
d) It moves it to areas where it is needed more

6) Which type of soil is most susceptible to erosion?
a) Sandy soil
b) Clay soil
c) An average mixture of both sand and clay
d) Any soil is equally susceptible to erosion

7) Which of the following human practices does not directly promote soil erosion?
a) Overgrazing
b) Intensive farming
c) Building dams in rivers
d) Deforestation