Q. Which of the following is a natural solid fuel? (Solved)
1. Pulverised coal
2. Wood charcoal
3. Bituminous coal
4. Coking coal
5. None of the above
- c. Bituminous coal
1. Pulverised coal
2. Wood charcoal
3. Bituminous coal
4. Coking coal
5. None of the above