1.
Soil that is cultivated regularly, loses structure and nutrients.
A
True
B
False
C
2.
Constant heavy grazing does not affect the soil nor the foliage of the plants.
A
True
B
False
C
3.
Wind can cause erosion by blowing around loose soil.
A
True
B
False
C
4.
Gulley erosion refers to when the soild cannot absorb any more water due to heavy rain.
A
True
B
False
C
5.
When the most productive soil layer is lost, the structure of the soil becomes deserted and it does not allow the roots to penetrate.
A
True
B
False
C
6.
Desertification means that the land cannot sustain life and it carries other consequences like communities being replaced because of famine or malnutrition.
A
True
B
False
C
7.
These can be artificial or natural, and their objective is to reduce wind erosion.
A
terracing
B
bunds
C
windbreaks
8.
They are like steps created on steep slopes to prevent water from eroding the land down the hill.
A
terracing
B
bunds
C
windbreaks
9.
They are artificial banks at the edges of the crops. They are designed to hold back water.
A
bunds
B
windbreaks
C
adding organic matter
10.
This adds nutrients to the soild and provides additional air gap in heavy soils.
