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Environmental Science And Ecology | Page - 9 | Multiple Choice Questions (MCQ)

Q 74131c8ca4-sec2 -
Attack of asthma in certain persons may be due to ?
A. Exposure to cold temperature
B. Inhalation of some air borne pollen
C. Eating of some seasonal vegetables
D. Low concentration of CO2 due to increased rate of photosynthesis
Answer - B
Detail - No Details

Q e96c080f01-sec2 -
Among the following, a secondary pollutant is ?
A. PAN
B. SO2
C. CO
D. Aerosol
Answer - A
Detail - No Details

Q 7aec15a780-sec2 -
Addition of phosphates and nitrates/fertilizers into water leads to ?
A. Increased algal growth
B. Nutrient enrichment (eutrophication)
C. Reduced algal growth
D. Increased growth of decomposers
Answer - B
Detail - No Details

Q 6234a3a571-sec2 -
Acid rain is caused by increase in the atmospheric concentration of ?
A. Ozone and dust
B. SO2 and NO2
C. SO3 and CO
D. CO2 and CO
Answer - B
Detail - No Details

Q 2bcf254ab5-sec2 -
According to Central Pollution Control Board (CPCB), which particulate size in diameter (in micrometers) of the air pollutants is responsible for greatest harm to human health?
A. 5.2 - 2.5
B. 2.5 or less
C. 1.5 or less
D. 1.0 or less
Answer - B
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Q a993590640-sec2 -
A disease affecting industrial workers is ?
A. Silicosis
B. Fluorosis
C. Asthma
D. None of these
Answer - A
Detail - No Details

Q 0e956e96ee-sec2 -
Which one of the following pairs of gases are the major causes of "Greenhouse Effect"?
A. CO2 and N2O
B. CO2 and O3
C. CO2 and CO
D. CFCs and SO2
Answer - A
Detail - No Details

Q 8471e7b28a-sec2 -
The pyramid of energy is always upright for any ecosystem. This situation indicates the fact that ?
A. Herbivores have a better energy conversion efficiency than carnivores.
B. Producers have the lowest energy conversion efficiency.
C. Carnivores have better energy conversion efficiency than herbivores.
D. Energy conversion efficiency is the same in all trophic levels.
Answer - A
Detail - No Details

Q 6cda8da9a5-sec2 -
In a comparative study of grassland ecosystem and pond ecosystem, it may be observed that ?
A. primary and secondary consumers are similar
B. the abiotic components are almost similar
C. the biotic components are almost similar
D. both biotic and abiotic components are different
Answer - B
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Q e398526fd7-sec2 -
Which one of the following is correct matching of a plant, its habit and the forest type where it normally occurs?
A. Prosopis, tree, scrub
B. Saccharum, grass, forest
C. Shorea robusta, herb, tropical rain forest
D. Acacia catechu, tree, coniferous forest
Answer - A
Detail - No Details


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