Hirakud dam was constructed mainly

1. for irrigation
2. to control floods
3. to supply water for domestic use
4. to store water

The main raw materials for generation of atomic energy

1. uranium and plutonium
2. coal and non-ore
3. manganese and copper
4. copper and bauxite

Identify the type of energy used in the given picture

1. wind energy
2. solar energy
3. biomass energy
4. tidal power

Largest coal field in India

1. Digboi
2. Ranigunj
3. Jharia
4. Bombay High