Which of the following symbol is used for carrying of population?
a) C
b) P
c) K
d) D
Explanation: The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment
According
to World Bank and United Nations, how much humans are now malnourished?
a) 1 to 2 million
b) 1 to 2 billion
c) 3 to 5 million
d) 3 to billion
How much percent of the world’s food supply comes from land?
a) 99%
b) 90%
c) 19%
d) 11%
How much percent of the world’s food supply comes from oceans and other aquatic habitats?
a) 8%
b) 9%
c) 1%
d) 93%
Which of the following is/are the cause/s of extremely high rate of population in Pakistan?
a) falling death rate
b) high birth rate
c) decreasing economy
d) both a and b
The unit of measurement of biomass is…
a) mg/m2
b) gm/m2
c) cal/m2
d) all of these
