11.12.2015 Chapter
12- “ Our Water Wealth”
Q1.
Why cannot sea water be used for drinking or irrigation?
Ans1.
Sea water cannot be used for drinking or irrigation as it contains
salt.
Q2.
What problems occur in India because of rains occuring only in the
monsoon months?
Ans2.
Rivers are full of water during the monsoon months. Therefore, there
are often floods during these months. The extra water simply flows
into the sea and is not stored. On the other hand, many rivers dry up
during the summer months because of shortage of water.
Q3.
What is hydroelectricity?
Ans3.
Electricity generated from the force of water is called
HYDROELECTRICITY.
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