Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Pollution

11. The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as
a) pollutants
b) ecodestructions
c) pollution
d) all of these
12. Radiation can cause
Radiation
a) cardiac disease
b) Haemophilia
c) leukemia
d)bone marrow diseases
13. Which of the radioactive material is largely associated with bone cancer
a) radium-226
b) thorium-232
c) Strontium-90
d) iodine
14. Lead poisoning
a) reduces O2 carrying capacity of haemoglobin in blood
b) increases O2 carrying capacity of haemoglobin in blood
c) reduces O2 carrying capacity of myoglobin in muscles
d) increases O2 carrying capacity of myoglobin in muscles
15. Acid rain contains
a) sulphuric acid
b) nitric acid
c) both a and b
d) sulphuric acid, nitric acid and hydrochloric acid
16. The occurrence of pesticides like DDT in higher trophic levels is termed as
a) bioremediation
b) biomagnification
c) biological enhancement
d) biopollution
17. Earth summit was held in
a) Stockholm in 1972
b) Rio de Jeneiro in 1992
c) Paris in 1992
d) New York in 1972
18. All are physical pollutants except
a) heat
b) sound
c) radiations
d) soot
19. All are primary pollutants except
a) Ammonia
b) Peroxy Acyl Nitrate (PAN)
c) sulphur dioxide
d) hydrogen sulphide
20. Pollutants that are introduced into the environment by human activity are called as
a) qualitative pollutants
b) quantitative pollutants
c) anthropogenic pollutants
d) all of these
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Answers
11. c) pollution
12. c) leukemia
13. c) Strontium-90
14. a) reduces O2 carrying capacity of hemoglobin in blood
15. c) both a and b
16. b) biomagnification
17. b) Rio de Jeneiro in 1992
18. d) soot
19. b) Peroxy Acyl Nitrate (PAN)
20. a) qualitative pollutants

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