a) Polluted fuel b) Clean fuel c) Harmful fuel d) None of them
18. World environment day is celebrated on
a) 1st June b) 5th June c) 7th June d) 21 June
19. Which of the following country has the highest biodiversity?
a) India c) Brazil c) Russia d) South Africa
20. Pollution of water is responsible for
a) Oil refineries b) Paper factories c) Sugar mills d) All of them
21. Gaseous pollutants may be carried to other countries to
a) form acid rain b) cause acidification of soil c) form alkaline rain d) cause water pollution
22. Noise is:
(a) Loud sound (b) Sound of high frequency (c) Unwanted sound (d) Constant
sound
23. Death of fish in lakes and rivers in some countries has been attributed to
a) gaseous pollutants b) air toxics c) acid rains d) pollution
24. Biological decay, forest fires and volcanic eruptions are example of
a) gaseous pollutants b) water pollutants c) human-caused pollution d) all of the above
25. Ozone layer exists in
a) Troposphere b) Stratosphere c) Ionosphere d) Exosphere
26. Ramsar Conservation is associated with
a) Forest b) Wetlands c) Ocean d) Wildlife
27. Aluminum (Al) salts may become fatal to fish if allowed to react with
a) soil in the rivers b) soil in the lakes c) fossil fuel d) gaseous pollutants like acid rains
28. Chlorofluorocarbon is used in
a) Refrigerators b) Air conditioners c) Perfumes d) All of them
29. Which of the following is a liquid form of aerosol?
a) Fume b) Dust c) Mist d) Smoke
30. Conservation within natural habitat is
a) Zoological garden b) Ex-situ conservation c) In-situ conservation d) In-vivo conservation
31. Which national park is famous for having Great Indian one Horned Rhino?
a) Raja ji National Park b). Jim Corbet National Park c) Bandipur National Park d) Kajiranga
National Park
32. Red data book contains information for
a) All plant species b) All animal species c) Threatened species d) All economically
important plant species
33. Which of the following groups of plants can be used as indicators of SO pollution of air?
(a) Epiphytic lichens (b) Ferns (c) Liver worts (d) Horn worts
34. Among the following, the only secondary pollutant is:
(a) Sulphur tetraoxide (b) Sulphur dioxide (c) Ozone (d) Carbon dioxide
35. Which of the following devices is suitable for the removal of gaseous pollutants?
(a) Cyclone separator (b) Electrostatic precipitator (c) Fabric fil
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