Environment & Biodiversity MCQs

PDF compilation of Environment MCQs can be downloaded from this link. 

11. The ‘thickness’ of Stratospheric Ozone layer is measured in/on:
[A] Sieverts
[B] Dobson units
[C] Melson units
[D] Beaufort Scale

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12. Which among the following is the most abundant Green-House-Gas(GHG) in the earth’s atmosphere?
[A] Carbon dioxide
[B] Water Vapour
[C] Sulphur Dioxide
[D] Tropospheric Ozone

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13. The Cartagena Protocol is regarding safe use, transfer and handling of:
[A] Nuclear waste
[B] Invasive Alien Species
[C] Living Modified Organisms(LMOs)
[D] Toxic bye-products and industrial effluents

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14. Which among the following multilateral environment agreements (MEAs) is not correctly paired with the respective issue it deals with ?
[A] Montreal Protocol of 1987 – Ozone Depleting Substances.
[B] Bonn Convention of 1979 – The conservation of Migratory Species
[C] Basel Convention of 1989 – Regulation of transboundary movement,transit, handling and use of Living Modified Organisms.
[D] Rotterdam Convention of 1998 – Consensual International Trade in certain Hazardous Chemicals and Pesticides.

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15. The Western Ghats Ecology Expert Panel (WGEEP) is headed by:
[A] R.K.Pachauri
[B] Vandana Shiva
[C] Madhav Gadgil
[D] Pradip Krishen

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16. ‘Lion-tailed macaque’ is the key faunal species of which Biosphere Reserve?
[A] Nilgiri
[B] Dehang-Debang
[C] Dibru-Saikhowa
[D] Nokrek

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17. An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies. The name of this ‘invasive alien species’ is :
[A] Opuntia
[B] Aegilops
[C] Eichhornia
[D] Pistia

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18. In Nitrogen Cycle, soil nitrates are transformed into free nitrogen by:
[A] Nitrifying bacteria
[B] Denitrifying bacteria
[C] Ammonifying bacteria
[D] Both [A] and[C]

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19. Which one of the following is a useful biological indicator of Sulphur-dioxide pollution ?
[A] Bryophytes
[B] Algal blooms
[C] Pseudomonas
[D] Lichens

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20. The relationship between water fern Azolla and cyanobacterium Anabaena is :
[A] Symbiotic
[B] Mutualistic
[C] Commensalism
[D] Proto-Cooperation

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