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Biology 9 Chapter 3 - Biodiversity - 9
1.
Hunting contributes to how many percentage of the species extinction?
a) 2 %
b) 36 %
c) 39 %
d) 23 %
2.
Species introduction contributes to how many percentage of the species extinction?
a) 39 %
b) 2 %
c) 23 %
d) 36 %
3.
Habitat destruction contributes to how many percentage of the species extinction?
a) 36 %
b) 33 %
c) 2 %
d) 32 %
4.
In developing countries almost how many people rely on wood for heating and cooking?
a) 3 million
b) 600 million
c) 5 billion
d) 3 billion
5.
---------- is the cutting down of trees for conversion of forest into non forest land?
a) Biodiversity
b) Reforestation
c) Deforestation
d) None of these
6.
When there are no trees to keep soil in place, there are how many chances of the soil erosion?
a) More
b) Constant
c) Less
d) No effect
7.
Forests exrtact……………………… and pollutants from the air?
a) Carbon dioxide
b) Carbon monoxide
c) Oxygen
d) Nitogen
8.
In province Khyber Pakhtunkhwa, the closed canopy forests are shrinking at approximately which rate per year?
a) 3%
b) 1.5%
c) 2%
d) 1%
9.
National conservation strategy for Pakistan wasformuated in which year?
a) 1980
b) 1995
c) 1993
d) 1992
10.
Pakistan signed UN CCD in which year?
a) 1992
b) 1997
c) 1998
d) 1993
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