Environmental Issues (NEET) - Online MCQs Test

Online NEET Biology MCQ | NEET MCQ on Environmental Issues (Class 12) | Online MCQ Online Test No. 03

Environmental Issues - Quiz 3

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Question 1

Lead is one of the most serious environmental pollutants which affects

A	Air
B	Soil
C	Water
D	Noise

Question 2

lf there was no CO₂ in the atmosphere, the earth’s temperature would be

A	Less than the present
B	Same as present
C	Higher than the present
D	Dependent on O₂ content of air

Question 3

Which of the following pollutants is discharged by jet planes?

A	Photo-chemical oxidants
B	Fog
C	Smog
D	Aerosols

Question 4

Lichens indicate pollution by

A	Ozone
B	SO₂
C	NO₃
D	CO

Question 5

Which of the environmental pollutions can cause birth defects?

A	Smog
B	CO
C	SO₂
D	Radioactivity

Question 6

Major aerosol pollutant present in the jet plane emission is

A	Carbon monoxide
B	Carbon tetrachloride
C	Chlorofluorocarbon
D	Sulphur dioxide

Question 7

Ultra-violet light causes

A	Photodynamic action
B	Sticky metaphases
C	Formation of pyrimidines
D	Destruction of hydrogen bonds between complementary DNA strands

Question 8

Maximum deposition of DDT will occur in

A	Phytoplankton
B	Crab
C	Eel
D	Sea gull

Question 9

The ultraviolet radiations in the stratosphere are absorbed by

A	SO₂
B	Oxygen
C	Ozone
D	Argon

Question 10

Maximum threat to the world is from

A	Global warming
B	Ozone hole
C	Water pollution
D	Soil erosion

Question 11

Minamata disease is due to pollution of

A	Industrial waste mercury into fishing water
B	Oil spill in water
C	Organic waste into drinking water
D	Arsenic into the atmosphere

Question 12

Montreal Protocol aims at

A	Control of CO₂ emission
B	Reduction of ozone depleting substances
C	Biodiversity conservation
D	Control of water pollution

Question 13

Most abundant water pollutant is

A	Industrial wastes
B	Pesticides
C	Detergents
D	Ammonia

Question 14

Most harmful environmental pollutants are

A	Natural nutrients in excess
B	Human organic wastes
C	Nonbiodegradable chemicals
D	Waste animal feed

Question 15

The atmosphere of big metropolitan cities is polluted most by

A	Automobile exhausts
B	Radio-active fall out
C	Household waste
D	Pesticides residue

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Environmental Issues - Quiz 3

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