Question

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Answer 1

2. (c) Asthma

is not caused due to water pollution.

3. (a) Use of traditional manure

can be tried as a measure towards the prevention of pollution of land.

4. (d) Use of CNG-PNG vehicle

should be done in order to stop pollution of air.

5. (b) Noise pollution will stop

if we do not burst crackers during the diwali festival.

Answer 2

Answer:

Osmosis is a passive process and happens without any expenditure of energy. It involves the movement of molecules from a region of higher concentration to lower concentration until the concentrations become equal on either side of the membrane. Any solvent can undergo the process of osmosis including gases and supercritical liquids.

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