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OTI365 - NEET 2022
NEET Biology - Environmental Issues Important Questions with Answer

Environmental Issues

Exam Duration: 45 Mins Total Questions : 30

1 )

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

(a)
1957
(b)
1981
(c)
1985
(d)
1990

2 )

Study the following statements regarding acid rain and select the incorrect ones.
(i) Acid rain refers to the rainfall and other forms of precipitation with a pH of less than 5.
(ii) Oxides of sulphur and nitrogen are released from automobile exhausts, industries, power plants, etc.
(iii) These oxides of sulphur and nitrogen, may react with water in the air and form sulphuric acid (H₂SO₄) and nitric acid (HNO₃).
(iv) Acid rain has harmful effects on animals and human beings but no characteristic impact on plants.

(a)
(i) and (iii)
(b)
(iii) and (iv)
(c)
(iv) only
(d)
(ii) only

3 )

Select the correct match of air pollution source with the type of pollutant and the effect it produces.

(a)
Chemical factory\(\rightarrow\) NO₂\(\rightarrow\)Ozone hole
(b)
Automobile exhaust \(\rightarrow\) N₂O \(\rightarrow\) Asphyxia effect
(c)
Heavy industry\(\rightarrow\) CO₂\(\rightarrow\)Acid rain
(d)
Incinerators\(\rightarrow\) NO_x gases \(\rightarrow\) Photochemical smog

4 )

Which one of the following statements regarding CO gas is correct?

(a)
It is produced by the complete combustion of fossil fuels.
(b)
It combines with haemoglobin to form carbamino haemoglobin.
(c)
It impairs oxygen transport resulting in giddiness, headache, asphyxia and even death.
(d)
All of these

5 )

Which of the following is a method used to get rid of particulate matter present in the exhaust from a thermal power plant?

(a)
Magnetic precipitator
(b)
Chromatography
(c)
Electrostatic precipitator
(d)
Mass spectrometry

6 )

Catalytic converters, which are fitted into automobiles for reduonq the emission of poisonous gases possess which of the following metals as catalyst?

(a)
Platinum-Palladium
(b)
Rhodium
(c)
Lead
(d)
Both (a) and (b)

7 )

Noise pollution may cause nervousness and irritability by stimulating the secretion of

(a)
thyroid hormone
(b)
adernaline hormone
(c)
parathyroid hormone
(d)
none of these.

8 )

Which of the following statements is not correct regarding algal blooms?

(a)
Algal blooms are formed by blue-green algae.
(b)
Growth of Eichhornia crassipes causes colouration.
(c)
Increased growth of algae causes depletion of O₂ in water.
(d)
Algal blooms cause deterioration of water quality and fish mortality.

9 )

Contamination of water with sewage is indicated by cysts of

(a)
Escherichia
(b)
Entamoeba
(c)
Pseudomonas
(d)
Leishmania

10 )

Phosphate pollution is brought about by

(a)
phosphate rocks
(b)
automobile exhausts
(c)
sewage and phosphate rocks
(d)
sewage and agricultural fertilisers.

11 )

Match column I with column II and select the correct option from the given codes.

	Column I		Column II
A	Mercury	i	Methaemoglobinemia (or Blue baby syndrome)
B	Nitrate	ii	Black foot disease
C	Arsenic	iii	Itai-itai disease
D	Cadmium	iv	Minamata disease

(a)
A-(iv), B-(i), C-(ii), D-(iii)
(b)
A-(iv), B-(i), C-(iii), D-(ii)
(c)
A-(ii), B-(iii), C-(i), D-(iv)
(d)
A-(ii), B-(iv), C-(i), D-(iii)

12 )

High concentration of nutrients especially nitrates and phosphates in water can accelerate which of the following phenomenon?

(a)
Algal bloom
(b)
Eutrophication
(c)
Biomagnification
(d)
Both (a) and (b)

13 )

Match column I with column II and select the correct option from the given codes.

	Column - I		Column -II
A	Catalytic converter	i	Used in industries and power plants
B	Electrostatic precipitator	ii	Used in automobiles
C	Earmuffs	iii	High noise level
D	Land fills	iv	Solid wastes

(a)
A·(i), B-(ii), C-(iii), D-(iv)
(b)
A-(ii), B-(i), C-(iii), D-(iv)
(c)
A-(iv), B-(iii), C-(ii), D-(i)
(d)
A-(iii), B-(ii), C-(iv), D-(i)

14 )

Ozone layer of upper atmosphere is being destroyed by

(a)
chlorofluorocarbons
(b)
SO₂
(c)
O₂ and CO₂
(d)
smog

15 )

The major ozone depleting substance out of the following is:

(a)
CFCs
(b)
O₂
(c)
nitrogen
(d)
all of these

16 )

Which of the following can cause DNA damage and mutations in humans?

(a)
Absorption of UV-A and UV-B
(b)
Absorption of UV-B
(c)
Absorption of UV-A
(d)
Absorption of UV-A and UV-C

17 )

The material generally used for sound proofing of rooms like a recording studio and auditorium, etc. is

(a)
cotton
(b)
coir
(c)
wood
(d)
styrofoam

18 )

The expanded form of DDT is

(a)
dichloro diphenyl trichloroethane
(b)
dichloro diethyl trichloroethane
(c)
dichloro dipyrydyl trichloroethane
(d)
dichloro diphenyl tetrachloroacetate

19 )

Among the following which one causes more indoor chemical pollution?

(a)
Burning coal
(b)
Burning cooking gas
(c)
Burning mosquito coil
(d)
Room spray

20 )

The major source of noise pollution, worldwide is due to

(a)
office equipment
(b)
transport system
(c)
sugar, textile and paper industries
(d)
oil refineries and thermal power plants.

21 )

Why is it necessary to remove sulphur from petroleum products?

(a)
To reduce the emission of sulphur dioxide in exhaust fumes.
(b)
To increase efficiency of automobiles engines.
(c)
To use sulphur removed from petroleum for commercial purposes.
(d)
To increase the life span of engine silencers.

22 )

Assertion: Through the use of catalytic converters, unburnt hydrocarbons are changed into carbon monoxide which in turn is changed into nitrogen oxides and water.
Reason: Motor vehicles equipped with catalytic converters should use leaded petrol to protect the catalyst from degradation.

(a)
If both assertion and reason are true and reason is the correct explanation of assertion.
(b)
If both assertion and reason are true but reason is not the correct explanation of assertion.
(c)
If assertion is true but reason is false.
(d)
If both assertion and reason are false.

23 )

Assertion: Sewage, industrial effluents and waste water are non-point sources of water pollution.
Reason: Surface runoff is point source of water pollution.

(a)
If both assertion and reason are true and reason is the correct explanation of assertion.
(b)
If both assertion and reason are true but reason is not the correct explanation of assertion
(c)
If assertion is true but reason is false.
(d)
If both assertion and reason are false

24 )

Euro-II (April - 2000) is emission norms for reducing