Pollution of Air and Water Test

Result

Pollution of Air and Water Test - 2

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Weekly Quiz Competition

Question 1
1 / -0

Consider the following statements and select the option which correctly identifies true (T) and false (F) ones.

(i) Scrubbers are used to remove suspended particulate matter from factories.
(ii) Excess carbon monoxide present in the atmosphere traps a lot of heat and leads to warming of Earth's surface.
(iii) The suspended particulate matter present in the air is known as aerosol.
(iv) Kyoto protocol was signed to reduce the emission of greenhouse gases.

A

(i) (ii) (iii) (iv)

T F T F

B

(i) (ii) (iii) (iv)

T F F T

C

(i) (ii) (iii) (iv)

F F T T

D

(i) (ii) (iii) (iv)

T F T T

Solution

Excess carbon dioxide present in the atmosphere traps a lot of heat and leads to warming of Earth's surface.
Question 2
1 / -0

Trees are planted along the roadside to reduce pollution from motor vehicles. How do trees help to reduce pollution?

(i) They absorb traffic noise.
(ii) They take in carbon dioxide.
(iii) They trap dust and soot from the exhaust pipes of vehicles.

A
(i) and (ii) only

B
(ii) and (iii) only

C
(i) and (iii) only

D
(i), (ii) and (iii)
Question 3
1 / -0

Which of the following statements about eutrophication is/are correct?

(i) It increases the amount of sunlight reaching the bottom of the water body.

(ii) It occurs due to excessive enrichment of the water in river and lakes.

(iii) It results in decrease in water clarity, dissolved oxygen and aquatic life.

A
(ii) only

B
(i) and (iii) only

C
(ii) and (iii) only

D
(i), (ii) and (iii)

Solution

Eutrophication decreases the amount of sunlight reaching the bottom of the water body.
Question 4
1 / -0

Read the given statements and select the correct option.

Statement 1: Carbon dioxide helps in maintaining temperature of the Earth.
Statement 2: Carbon dioxide traps heat of the reflected infrared radiations and stops heat from escaping the Earth's surface.

A
Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

B
Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

C
Statement 1 is true but statement 2 is false.

D
Both statements 1 and 2 are false.
Question 5
1 / -0

Which of the following statements is incorrect?

A
Suspended particulate matter can lead to respiratory problems like bronchitis and asthma.

B
Acid rain is mainly constituted by SO₂ and NO₂.

C
CNG is called a cleaner fuel as it burns completely.

D
Major greenhouse gases are CFCs. and hydrocarbons only.

Solution

The gases which trap the solar radiations and partially reflect back long wave heat radiations are called greenhouse gases. The various greenhouse gases are CO₂,CH₄, chlorofluorocarbons (CFCs), nitrous oxide, water vapours, etc.
Question 6
1 / -0

Select the pair of diseases that are caused by contaminated water.

A
Cholera and typhoid

B
Diarrhoea and common cold

C
Pneumonia and typhoid

D
Malaria and pneumonia

Solution

Both cholera and typhoid are transmitted through food or drinking water contaminated by the faeces or urine of
Question 7
1 / -0

Air pollutants are harmful to living things. Which of the following is/are their harmful effect(s)?

(i) They form acid rain.
(ii) They cause breathing problems in humans.
(iii) They interfere with photosynthesis in plants.
(iv) They result in the depletion of ozone layer.

A
(i) only

B
(i) and (ii) only

C
(i), (ii) and (iii) only

D
(i), (ii), (iii) and (iv)

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Re-Attempt Weekly Quiz Competition

(i)	(ii)	(iii)	(iv)
T	F	T	F

(i)	(ii)	(iii)	(iv)
T	F	F	T

(i)	(ii)	(iii)	(iv)
F	F	T	T

(i)	(ii)	(iii)	(iv)
T	F	T	T

Pollution of Air and Water Test - 2

Result

Pollution of Air and Water Test - 2

Score

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Rank

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SHARING IS CARING

Question 1

(i) (ii) (iii) (iv) T F T F

(i) (ii) (iii) (iv) T F F T

(i) (ii) (iii) (iv) F F T T

(i) (ii) (iii) (iv) T F T T

Solution

Question 2

(i) and (ii) only

(ii) and (iii) only

(i) and (iii) only

(i), (ii) and (iii)

Question 3

(ii) only

(i) and (iii) only

(ii) and (iii) only

(i), (ii) and (iii)

Solution

Question 4

Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.

Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.

Statement 1 is true but statement 2 is false.

Both statements 1 and 2 are false.

Question 5

Suspended particulate matter can lead to respiratory problems like bronchitis and asthma.

Acid rain is mainly constituted by SO2 and NO2.

CNG is called a cleaner fuel as it burns completely.

Major greenhouse gases are CFCs. and hydrocarbons only.

Solution

Question 6

Cholera and typhoid

Diarrhoea and common cold

Pneumonia and typhoid

Malaria and pneumonia

Solution

Question 7

(i) only

(i) and (ii) only

(i), (ii) and (iii) only

(i), (ii), (iii) and (iv)

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(i) (ii) (iii) (iv)

T F T F

(i) (ii) (iii) (iv)

T F F T

(i) (ii) (iii) (iv)

F F T T

(i) (ii) (iii) (iv)

T F T T

Acid rain is mainly constituted by SO₂ and NO₂.