Free Environmental Issues (Daily Quiz: 7) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Question-1

Heavy metal in waste water comes from

(a) Paper manufacturing industries

(b) Petroleum industries

(c) Metal extraction industries

(d) All of these

Question-2

A lake affected by high levels of artificial eutrophication will have

(a) high levels of nutrients, low phytoplankton levels, high oxygen levels in surface waters.

(b) high nutrient levels, large phytoplankton populations, and low oxygen levels at depth.

(c) low nutrient levels, large phytoplankton populations, and low oxygen levels at depth.

(d) low nutrient levels, low phytoplankton populations, and high oxygen levels at depth.

Question-3

Statement 1 :
$CO_{2}$ causes greenhouse effect.
Statement 2 :
Other gases do not show such effect.

(a) Statement -1 is True, Statement -2 is True ; Statement-2 is NOT a correct explanation for Statement – 1

(b) Statement- 1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement -1

(c) Statement - 1 is True, Statement- 2 is False

(d) Both the Statements are False.

Question-4

Which one is not a pollutant normally?

(a) Carbon dioxide

(b) Hydrocarbon

(c) Carbon monoxide

(d) Sulphur dioxide

Question-5

Pollution in big cities can be controlled to a large extent by

1. improving traffic condition and road.
2. roadside plantation
3. proper disposal of garbage and domestic as well as municipal wastes.
4. cannot be controlled

(a) (ii) and (iii)

(b) (i) and (ii)

(c) (i) and (iv)

(d) all of these