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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

E) All of the above
F) None of the above

Correct Answer

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A

Minamata disease was caused by pollution of water by


A) mercury
B) lead
C) tin
D) methyl iso cyanate

E) C) and D)
F) B) and C)

Correct Answer

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Cement factory labourers are prone to


A) leukemia
B) bone marrow disease
C) asbestosis
D) cytosilicosis

E) A) and B)
F) B) and C)

Correct Answer

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Noise is measured using sound meter and the unit is


A) hertz
B) decibel
C) joule
D) sound

E) B) and D)
F) B) and C)

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All are physical pollutants except


A) heat
B) sound
C) radiations
D) soot

E) A) and D)
F) A) and B)

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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

E) B) and D)
F) A) and B)

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Heavy dust can cause


A) leaf blights
B) opening of stomata
C) closure of stomata
D) browning of leaves

E) All of the above
F) B) and C)

Correct Answer

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C

Earth summit was held in


A) Stockholm in 1972
B) Rio de Jeneiro in 1992
C) Paris in 1992
D) New York in 1972

E) B) and C)
F) A) and D)

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Which of the following is mainly responsible for the extinction of wild life


A) Pollution of air and water
B) Hunting of flesh
C) Destruction of Habitats
D) All of these

E) B) and D)
F) A) and B)

Correct Answer

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Which of the following is the major cause of pollution


A) plants
B) man
C) fungi
D) hydrocarbon gases

E) A) and D)
F) All of the above

Correct Answer

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All are primary pollutants except


A) Ammonia
B) Peroxy Acyl Nitrate (PAN)
C) sulphur dioxide
D) hydrogen sulphide

E) C) and D)
F) A) and B)

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The occurrence of pesticides like DDT in higher trophic levels is termed as


A) bioremediation
B) biomagnification
C) biological enhancement
D) biopollution

E) None of the above
F) All of the above

Correct Answer

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Viable material of endangered species can be preserved by


A) Gene bank
B) Gene library
C) Gene pool
D) Herbarium

E) B) and D)
F) A) and C)

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Wild life is continuously decreasing. What is the main reason of this?


A) Predation
B) Cutting down of forest
C) Destruction of habitat
D) Hunting

E) None of the above
F) A) and B)

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The unfavourable alteration of environment due to human activities is termed as


A) ecological disturbance
B) catastrophe
C) ecological degradation
D) pollution

E) A) and B)
F) A) and C)

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A river with high BOD value is


A) highly polluted
B) highly clean
C) highly productive
D) none of these

E) A) and B)
F) A) and C)

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Which of the radioactive material is largely associated with bone cancer


A) radium-226
B) thorium-232
C) Strontium-90
D) iodine

E) A) and B)
F) None of the above

Correct Answer

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What is the major cause of diminishing wildlife number?


A) Felling of trees
B) Cannibalism
C) Habitat destruction
D) Paucity of drinking water

E) A) and D)
F) C) and D)

Correct Answer

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C

5th June is observed as


A) world forest day
B) world environment day
C) world wildlife day
D) world population day

E) B) and C)
F) A) and D)

Correct Answer

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Red Data Book Provides data on


A) Red flowered plants
B) Red colored fishes
C) Lists of plants and animals
D) Endangered plants and animals

E) B) and D)
F) All of the above

Correct Answer

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