Question

D. Fill in the blanks.
1. Waterfalls can be harnessed to generate________

2.________
is the main source
of
freshwater

3. The Hirakud Dam is built across River__________

4.__________
present in water is harmful
for the nervous system.

5. The most common method to purify
drinking water is________​

Answer 1

Answer:

1. Electricity

2. rainfall

3. narmada

4. chemicals

5. filtration

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Answer 2

Answer:

1. electricity, 2. ice,3. mahanadi, 4 protozoan

5. filtration