Environmental Issues Test

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Environmental Issues Test - 51

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Weekly Quiz Competition

Question 1

1 / -0

Read the following about pollution and identify the correct matching combinations.

List I	List II	List III
(A) Chernobyl	Accidental leakage	Radioactive wastes
(B) Elnino effect	Global warming	Causing climatic change
(C) Chlorofloro carbons	Ozone degradation	Fluorine atoms released
(D)Snow blindness	UV-B Radiation	Inflammation of cornea

A, C

A, D

A, B, D

B, D

Solution

Chernobyl disaster was a catastrophic nuclear accident at Chernobyl. Due to the leakage, very high amount of radioactive wastes were released. Elnino is a naturally occurring climate cycle that is related to a periodic warming in a sea surface temperatures across the central and east-central equatorial Pacific. It causes climatic change and global warming. Chlorofluorocarbons is an organic compound that contains the atoms of carbon, fluorine and chlorine. It causes the ozone depletion on exposure of chlorine atoms in the UV rays. Snow blindness is the loss of vision due to overexposure to the UV rays. It is the inflammation of the cornea (sunburned cornea).

So, the correct answer is option D.

Question 2
1 / -0

Most fertile layer of soil is the ____.

A
Top layer

B
Organic layer

C
Middle soil layer

D
All of these
Solution
- A Horizon is the top layer of soil also called Topsoil. This layer is rich in various microorganisms, minerals and humus. It is the most fertile layer of soil.
Question 3
1 / -0

Deforestation causes__________ to linger in the atmosphere.

A
$CO_2$

B
$H_2O$

C
$O_2$

D
$N_2$

Solution

Deforestation causes carbon dioxide to linger in the atmosphere. As carbon dioxide accrues, it produces a layer in the atmosphere that traps radiation from the sun. The radiation converts to heat which causes global warming, which is better known as the greenhouse effect.
Question 4
1 / -0

Forests return most of the water that falls as precipitation to the atmosphere by

A
Phororespiration

B
Respiration

C
Transpiration

D
All of the above

Solution

Transpiration is the process by which plants loose water through their leaves in the atmosphere.
Question 5
1 / -0

The hard mineral crust formed at or near the surface of soil is known as

A
Duripan.

B
Duricrust.

C
Anaerobic soil.

D
Peat.
Question 6
1 / -0

The permanent removal of forests and woodlands is called

A
Reforestation

B
Afforestation

C
Deforestation

D
Agroforestry

Solution

Deforestation is the permanent destruction of forests. It is done in order to make the land available for other uses. The main reason of deforestation are industrialisation, urbanisation etc. It is very destructive for the ecosystem.
Question 7
1 / -0

Desertification is a type of

A
food preparation method for plants

B
afforestation method

C
land degradation

D
None of these

Solution

Desertification is a type of land degradation in which relatively dry area of land becomes increasingly arid, typically losing its bodies of water as well as vegetation and wildlife.
Question 8
1 / -0

Plants control the humidity in air by

A
Photosynthesis

B
Transpiration

C
Photorespiration

D
All of the above

Solution

Plants absorb water from the soil and looses it to the atmosphere by transpiration,hence,control the humidity in air by acting as a water exchanger between ground and atmosphere.
Question 9
1 / -0

Which of the following contributes the most towards deforestation?

A
Logging

B
Commercial agriculture

C
Subsistence farming

D
None of the above

Solution

Subsistence farming is responsible for $48$ % of deforestation; Commercial agriculture is responsible for $32$ %; logging is responsible for $14$ %, and fuel wood removals make up $5$ %.
Question 10
1 / -0

Issue of PUC certificate can control

A
Noise pollution

B
Water pollution

C
Sound pollution

D
Air pollution

Solution

Pollution Under Control (PUC) Certificate is a certificate that is mandatory for every vehicle owner to carry. The certification indicates that the emissions from the vehicle meet the standard pollution norms and do not pollute the environment by determining whether the vehicle contributes to air pollution. Thus, the correct answer is option D.

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Re-Attempt Weekly Quiz Competition

Environmental Issues Test - 51

Result

Environmental Issues Test - 51

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SHARING IS CARING

Question 1

A, C

A, D

A, B, D

B, D

Solution

Question 2

Top layer

Organic layer

Middle soil layer

All of these

Solution

Question 3

CO2CO_2CO2​

H2OH_2OH2​O

O2O_2O2​

N2N_2N2​

Solution

Question 4

Phororespiration

Respiration

Transpiration

All of the above

Solution

Question 5

Duripan.

Duricrust.

Anaerobic soil.

Peat.

Question 6

Reforestation

Afforestation

Deforestation

Agroforestry

Solution

Question 7

food preparation method for plants

afforestation method

land degradation

None of these

Solution

Question 8

Photosynthesis

Transpiration

Photorespiration

All of the above

Solution

Question 9

Logging

Commercial agriculture

Subsistence farming

None of the above

Solution

Question 10

Noise pollution

Water pollution

Sound pollution

Air pollution

Solution

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$CO_2$

$H_2O$

$O_2$

$N_2$