How many times human activities cause more soil erosion than any natural process?
a) 5 times
b) 10 times
c) 15 times
What are the human activities that cause soil erosion?
a) deforestation
b) agriculture
c) excessive urbanization
d) all of these
Cutting of trees from land refers to…
a) afforestation
b) deforestation
c) both a & b
d) none of these
Which of the following is the best way to prevent from soil
erosion?
a) deforestation
b) afforestation
c) both a & b
d) none of these
Which of the following is the oldest profession of man?
a) industrialization
b) urbanization
c) agriculture
d) all of these
Which of the following substance decrease the fertility of earth?
a) chemical fertilizer
b) pesticides
c) both a & b
d) none of these
