EASY
5th CBSE
IMPORTANT
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Which gas is used to disinfect water?

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Important Questions on Water
EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

EASY
5th CBSE
IMPORTANT

MEDIUM
5th CBSE
IMPORTANT
Match the following:
1. Very little salt | (a) helps in sedimentation |
2. Alum | (b) solid impurity left behind |
3. Residue | (c) allow water to pass through |
4. Carbon dioxide | (d) unsaturated solution |
5. Pervious rocks | (e) helps in photosynthesis of aquatic plants |
