UPSC 1996 › Environment & Ecology › Water & Wetland Conservation

2 questions · 1996 · answers as per the UPSC key

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UPSC 1996 · Q49 · Environment & Ecology › Water & Wetland Conservation · Save

Assertion (A): Mangroves are very specialised forest ecosystems of tropical and subtropical regions bordering certain sea coasts.

Reason (R): They stabilise the shoreline and act as bulwark against encroachments by sea. In the context of the above two statements, which one of the following is correct?

(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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Answer: (a) Both A and R are true and R is the correct explanation of A
UPSC 1996 · Q106 · Environment & Ecology › Water & Wetland Conservation · Save

Physico-chemical characteristics of water in water sources undergo changes due to

(a) aquatic macrophytes
(b) aquatic fungi
(c) effluents
(d) evapotranspiration
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Answer: (c) effluents