Environment, Ecology & Biodiversity MCQs

Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.

21. If you travel through western ghats, you are likely to see:
1. Lion-tailed Macaque
2. Markhor
3. Hoolock gibbon
Select the correct option from the codes given below:

[A] Only 1
[B] 1 & 2
[C] 1, 2 & 3
[D] 1 & 3

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22. Why the biodiesel made of vegetable oil does not perform well in cold climates?

  1. Vegetable oil is rich in unsaturated fats
  2. Vegetable Oil is rich in saturated fat
  3. Ice Crystals tend to form in Vegetable oil in cold climates

Select the correct option from the codes given below:

[A] Only 1 & 3
[B] Only 2 & 3
[C] Only 1
[D] Only 3

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23. National Green Tribunal (NGT) has been frequently making news in recent times. Which among the following is / are features of NGT?

  1. A decision by NGT is equivalent to a decree of a civil court
  2. A decision by NGT is subject to judicial review by Supreme Court

Which among the above statements is / are correct?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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24. Consider the following statements with respect to the term "Flex-Fuels" which were recently making news:

  1. Flex fuels are prepared from animal fats or vegetable oils.
  2. Flex fuels reduces sulphur dioxide, lead and zinc emissions.
  3. Flex fuels are less volatile and have lower octane rating than petrol.

Which of the above is / are correct statements?

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 2
[D] 1, 2 & 3

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25. Which of the following can be reduced to zero by complete water recycling in industries and households?

  1. Blue water footprint
  2. Grey water footprint
  3. Green water footprint

Select the correct option from codes given below:

[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3

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26. Guar gum:
1. is used in Hydraulic Fracturing Process.
2. is more viscous when compared to water
3. is produced mainly in western India
Which of the above is / are correct statements?

[A] 1 & 3 Only
[B] 2 & 3 Only
[C] 1 & 2 Only
[D] 1, 2 & 3

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27. In context of various environmental treaties, consider the following statements:

  1. Rotterdam convention promotes safe handling and open exchange of information on international trade of certain hazardous chemicals
  2. Basel Convention promotes the control of transboundary movements of hazardous wastes and their Disposal
  3. Stockholm convention aims at conscious of the need for global action on persistent organic pollutants

Which of the above statements is/are correct?

[A] 3 Only
[B] 1 and 2 Only
[C] 1, 2 and 3 Only
[D] None

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28. As per recent reports of Greenpeace International, emission of which of the following pollutants by thermal power plants has increased maximum within last 6 years in India?

[A] Sulphur dioxide
[B] Nitrogen oxides
[C] PM2.5
[D] PM10

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29. Consider the following pollutants:

  1. Ground level ozone
  2. Sulphur oxides
  3. Volatile organic compounds

Which of the above is/are primary pollutant(s)?

[A] 1 Only
[B] 2 & 3 Only
[C] 1 & 2 Only
[D] 2 Only

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30. Aerosols are minute particles suspended in the atmosphere, and are known to reduce primary productivity on earth. How they contribute in reducing primary productivity?

[A] By decreasing oxygen concentration
[B] By preventing nitrogen fixation
[C] By decreasing atmospheric albedo
[D] By increasing atmospheric albedo

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