Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Arrange the following gases in descending order of relative contribution to total global warming:
1) Carbon dioxide
2) Methane
3) CFCs
4) Nitrous oxide
Select the correct option from the codes given below:
[A] 1, 2, 3, 4
[B] 2, 1, 3, 4
[C] 1, 3, 2, 4
[D] 3, 1, 2, 4
Show Answer
Correct Answer: A [1, 2, 3, 4]
Notes:
Some of the greenhouse gases occur naturally in the atmosphere, while others result from human activities. Carbon dioxide contributes around 60%, Methane – 20%, CFC’s – 14% and N2O – 6%.
42. National Initiative On Climate Resilient Agriculture was launched by which of the following?
[A] UNEP
[B] ICAR
[C] IPCC
[D] MoEFCC
Show Answer
Correct Answer: B [ICAR]
Notes:
National Initiative On Climate Resilient Agriculture was launched by the Indian Council of Agricultural Research with funding from the Ministry of Agriculture, Government of India. It was launched in February 2011.
43. The concept of sustainable development was described by which of the following?
[A] Club of Rome
[B] Agenda 21
[C] Bruntland Commission Report
[D] None of the above
Show Answer
Correct Answer: C [Bruntland Commission Report]
Notes:
The concept of sustainable development was described by the Bruntland Commission Report of 1987. It described sustainable development as “development that meets the needs of the present without compromising the ability of future generations to meet their own needs.”
44. Which of the following provides information about the level of harm by a hazard?
1) Magnitude of the hazard
2) Frequency of the hazard
3) Intensity at the impact point
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2 & 3
[C] Only 1 & 2
[D] 1, 2, & 3
Show Answer
Correct Answer: D [1, 2, & 3]
Notes:
The post-analysis of any disaster is most important so as to prepare ourselves for the next one. Three methods are used to determine the level of Hard by any man-made or natural hazard which includes:
1) Magnitude.
2) Frequency and
3) Intensity
45. Which of the following statements are correct with respect to Xerosere?
1. It is a type of plant succession which is limited by water availability.
2. Xerosere originates on rock surfaces which are in an unweathered state.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Xerosere is a type of plant succession which is limited by water availability. Xerosere originates on rock surfaces which are in an unweathered state. There are different stages in a xerarch succession.
46. Which of the following is a vehicle that doesn’t emit tailpipe pollutants from the onboard source of power?
[A] BS VI vehicles
[B] Electric Vehicles
[C] ZEV vehicles
[D] Power vehicles
Show Answer
Correct Answer: C [ZEV vehicles]
Notes:
Zero emission vehicles which are also called as ZEV’s are those vehicles that do not emit any tailpipe pollutants such as carbon monoxide, carbon dioxide from the onboard source of power.
47. Sub-alpine Forests are found in–
[A] Darjeeling
[B] Kalimpong
[C] Purulia
[D] Coochbehar
Show Answer
Correct Answer: A [Darjeeling ]
Notes:
Sub-alpine Forests is found in the very high reaches of North Bengal hills with an altitude between 3000m-3700m in the Northern part of Darjeeling
district. The main sites of these forests
are Sandakphu, Sabarkum, Phalut, etc.
48. Which of the following gas leaked in the Bhopal Gas tragedy in December 1984?
[A] Methyl isocyanate
[B] Methyl isochlorate
[C] Methyl phosphate
[D] Methyl isopropate
Show Answer
Correct Answer: A [Methyl isocyanate]
Notes:
In the gas tragedy that occurred at the Union Carbide India Limited pesticide plant in Bhopal, Madhya Pradesh, on 2-3 December 1984, over 500,000 people were exposed to toxic methyl isocyanate (MIC) gas and other chemicals. An estimated 10,000 or more people died in human disaster.
49. Which of the following is a biotic component of environment?
[A] Energy
[B] Radiation
[C] Water
[D] Green plant
Show Answer
Correct Answer: D [Green plant]
Notes:
Biotic components are the living things that shape an ecosystem. Examples of biotic components include animals, plants, fungi, and bacteria. Abiotic components are non-living components that influence an ecosystem. Examples of abiotic factors are temperature, air currents, and minerals.
50. An organism which can monitor air pollution is ____:
[A] Bacteria
[B] Lichen
[C] Algae
[D] Fungi
Show Answer
Correct Answer: B [Lichen]
Notes:
Lichens can be used as air pollution indicators, especially of the concentration of sulphur dioxide in the atmosphere. Air pollutants dissolved in rainwater, especially sulphur dioxide, can damage lichens, and prevent them from growing. This makes lichens natural indicators of air pollution.
