The true statement about 'green-house effect' is that it is cause

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Environmental Issues

Multiple Choice Questions

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121.
The true statement about 'green-house effect' is that it is caused by :

CO₂ only

SO₂ only

CO₂ and SO₂

CO₂, CFC, CH₄ and NO₂ gases

D.

CO₂, CFC, CH₄ and NO₂ gases

Greenhouse effect is a natural process that warms the Earth's surface. It can also be defined as heating of biosphere caused by incoming solar radiations and inhibiting the outgoing radiations. The warm air inside green house causes heating. It is caused by the gases like CO₂, CFCs, CH₄ and NO₂.

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122.

Soil carried by gravity is

alluvial
eolian
colluvial
glacial

123.

Which of the following is not a Green-house gas?

N₂O
CFC
O₃
CO₂

124.

Freon gas causing stratospheric O₃ depletion is mainly released from

refrigerator
automobile
thermal power plant
steel industry

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125.

Which of the following diseases is related to cadmium pollution?

Minamata
Pneumoconiosis
Anaemia
Itai- Itai

126.

Nutrient enrichment of a lake will cause

eutrophication
stratification
biomagnification
bioaccumulation

Short Answer Type

127.

What is bioaccumulation?

Multiple Choice Questions

128.

SO₂ pollution is indicated by

Desmodium (grasses)
Sphagnum (mosses)
Usnea (lichens)
Cucurbita (climbers)

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129.

Which one of the following is mainly responsible for green houses effect?

SO₂
CO₂
CO
O₂

130.

For a clean environment, which one following is not essential?

Producer
Consumer
Decomposer
Polluter

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