Which of the
following region has fever biodiversity in earth?
a) tropical
b) polar
c) desert
d) both b and c
How much the world’s economy is derived from biological resources?
a) 30%
b) 40%
c) 50%
d) 60%
How much the needs of poor people of the world are derived from biological resources?
a) 30%
b) 45
c) 55%
d) 80%
Biodiversity provides:
a) food
b) drugs
c) vitamins
d) all of these
Loss of species makes the ecosystem:
a) more productive
b) less productive
c) stable
d) none of these
Which of the
following factors depend upon its diversity?
a) fertility of soil
b) balanced climate
c) availability of food
d) all of these
