Environment  Bio Diversity

41. Which of the following is Not True about bioasphalt?

Unlike traditional asphalt, bio-asphalt is not based on fossil fuel Bio-asphalt can be made from organic waste materials It is eco-friendly to use bio-asphalt for surfacing of roads None of the above

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42. Emission from Coal Combustion at Thermal power plant consists of which of the following?

Carbon dioxide Oxides of nitrogen Oxides of sulphur All the above

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43. Human activities in the recent past have caused the increased contribution of CO2 in the atmosphere but a lot of it doesnt remain in lower atmosphere because of ?
A. photosynthesis by photo-plankton in the oceans
B. The trapping of air in polar ice-caps
Choose the correct codes from the given below

A only B only Both A and B Neither A nor B

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44. With reference to India which of the following Act have relevance to / Bearing on biodiversity conservation in Country?
A. Import & Export (control) Act, 1947
B. Mining & mineral development (Regulation) Act, 1957
C. Customs Act, 1962
D. Indian Forest Act, 1927
Choose the correct codes from the given below

A and B only A, B and C only A,B and C A, B, C, and D

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45. Which of the following organisms are employed as Bio pesticides?
A. bacteria
B. fungi
C. Flowering plants
Choose the correct codes from the given below

A and B only B and C only None A,B and C

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46. Which of the following can be used in biomass Gasification?
A. Coconut shells
B. Groundnut shells
C. Rice husk
Choose the correct codes from the given below

A and B only B and C only None A,B and C

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47. Which of the following are called pollinating Agents?
A. Bat
B. Bee
C. Bird
Choose the correct codes from the given below

A and B only B and C only None A,B and C

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48. Which of the following remains Threats to biodiversity of Geographical Area?

Global warming Fragmentation of habitat Invasion of alien species All the above

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49. Which one of the following is naturally found in India?

Black-necked crane Flying squirrel Snow leopard All the above

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50. The acidification of oceans is increasing. Why this phenomenon a cause of concern?
A. The growth and survival of calcareous phytoplankton will be adversely affected
B. The growth and survival of coral reef will be adversely affected
C. The survival of some animals that have phytoplankton larvae will be adversely affected
Choose the correct codes from the given below

A and B only B and C only None A,B and C

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