EASY
8th CBSE
IMPORTANT
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Which gas can kill a person, when inhaled in excess?

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Important Questions on Air and Water

EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 2
The problem caused by the inhalation of dust particles of air is _____.
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 3
Which of the following causes biological magnification?
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 4
Ozone hole is found right above the _____.
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 1
The increase in the concentration of _____ causes green house effect. (carbon dioxide/oxygen/helium)
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 2
Global warming is the rise in _____ of the atmosphere of the earth.
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 3
_____ used in refrigerators, damage the ozone layer of the atmosphere. (Chlorofluorocarbons/Oxygen/Argon)
EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 1

The monument in this figure is highly affected by _____ pollution.

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EASY
8th CBSE
IMPORTANT
LEARNING SCIENCE>Chapter 18 - Air and Water>Exercise>Q 2

Pollutants harming this monument come in the form 

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