UPSC 1998 › Environment & Ecology

9 questions · 1998 · answers as per the UPSC key

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Topics: Water & Wetland Conservation (3)International Environmental Treaties & Summits (2)Sustainable Agriculture & Forestry (2)Biodiversity & Conservation (1)Environmental Governance & Legislation (1)

Indonesian forest fire in 1997 was caused by

(a) greenhouse effect
(b) depletion of the ozone layer
(c) El Niño effects
(d) None of the above
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Answer: (d) None of the above

According to Meadows (1972), if the present trends in world population, industrialisation, pollution, food production and resource depletion continue unchanged, the “Limits to Growth” on our planet will be reached in the next

(a) 50 years
(b) 100 years
(c) 150 years
(d) 200 years
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Answer: (b) 100 years

Estuaries possess distinct blooms of excessive growth of a pigmented dinoflagellate. These blooms are called

(a) red tides
(b) sea tides
(c) black tides
(d) sea flowers
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Answer: (a) red tides

Some people in Manipur live in houses built on floating islands of weeds and decaying vegetation held together by suspended silt. These islands are called

(a) Tipis
(b) Barkhans
(c) Phumdis
(d) Izba
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Answer: (c) Phumdis

Forest areas have been labelled as 1, 2, 3 and 4 in the rough outline map given. Among these, those which were threatened in 1997 by a serious epidemic include

(a) Teak forests of 3 and 4
(b) Oak forests of 1 and sal forests of 2
(c) Sal forests of 3
(d) Sandalwood forests of 4
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Answer: (c) Sal forests of 3
This question uses a table or figure from the original paper that is not reproduced here.

‘Eco mark’ is given to the Indian products that are

(a) pure and unadulterated
(b) rich in proteins
(c) environment friendly
(d) economically viable
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Answer: (c) environment friendly

World Environment Conference to discuss global warming was held in 1997 in

(a) Stockholm
(b) Rio de Janeiro
(c) Paris
(d) Kyoto
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Answer: (d) Kyoto

The water pollution in river is measured by the dissolved amount of

(a) Chlorine
(b) Ozone
(c) Nitrogen
(d) Oxygen
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Answer: (d) Oxygen

A tree species in Mauritius failed to reproduce because of the extinction of a fruit-eating bird.

Which one of the following was that bird?

(a) Dove
(b) Dodo
(c) Condor
(d) Skua
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Answer: (b) Dodo