Water-Standards, Sewage and Waste Water Treatment and Recycling (CBSE-NET (UGC) Environmental Science (Paper-II & Paper-III)): Questions 1 - 2 of 2

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Question number: 1

» Water » Standards, Sewage and Waste Water Treatment and Recycling

Appeared in Year: 2015

MCQ▾

Question

Which one of the following is not correct for drip irrigation? - (June)

Choices

Choice (4) Response

a.

Drip consists of a network of perforated plastic tubing below the ground surface

b.

This techniques was developed in Israel in the 1960’s

c.

Small holes in the tubing drops off water at a slow rate close to plant roots

d.

Drip irrigation increases fertilizer use and water pollution from fertilizer run-off

Question number: 2

» Water » Standards, Sewage and Waste Water Treatment and Recycling

Appeared in Year: 2015

Assertion-Reason▾

Assertion (Ꭺ)

Methanogenic archaea (methanogens) grow in swamps and sewage. (June)

Reason (Ꭱ)

Methanogens are obligate anaerobes

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

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