State whether the following statements are true or false. Correct the false statements.

1. Man started using metallic tools from the Iron Age onwards.
2. India is a major producer of mica in the world.
3. Coal was also known as black gold.
4. Hydroelectricity is a non-renewable source of energy.
5. Shaft mining is a small-scale operation.

1. False
   Correct Statement — Man started using metallic tools from the Bronze Age onwards.

2. True

3. True

4. False
   Correct Statement — Hydroelectricity is a renewable source of energy.

5. False
   Correct Statement — Shaft mining is a large-scale operation.