Free Environmental Issues (Daily Quiz: 10) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Which of the following is a secondary pollutant?

(a) $CO_2$

(b) CO

(c) $SO_2$

(d) $O_3$

Question-2

Mark the correct statement.

(a) Global warming is because of ozone depletion.

(b) The major contribution in greenhouse gases is of CH4 .

(c) When organic waste enters into a water body its BOD increases.

(d) All of the above

Question-3

A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this. A. Lots of urea and phosphate fertilizer were used in the crops in the vicinity. B. The area was sprayed with DDT by an aircraft. C. The lake water turned green and stinky. D. Phytoplankton populations in the lake declined initially there by greatly reducing photosynthesis. Which two of the above were the main causes of fish mortality in the lake?

(a) A, B

(b) A, C

(c) B, C

(d) C, D

Question-4

The given diagram shows electrostatic precipitator. Identify A, B and C.

(a) A - Discharge corona, B - Positively charged wire, C - Collection plate grounded

(b) A - Discharge corona, B - Negatively charged wire, C - Collection plate grounded

(c) A - Discharge corona, B - Negatively charged wire, C - Collection plate burnt

(d) A - Uncharge corona, B - Positively charged wire, C - Collection plate never grounded

Question-5

The Air Prevention and Control of Pollution Act came into force in

(a) 1990

(b) 1985

(c) 1975

(d) 1981.