Q. Which assertion is correct ? (Solved)
1. There is role of ministry of forest and environment in developing biogas technology.
2. Micro organism are used as a bio control agent by IARI.
3. Biofertilisers are used over chemical fertilizer to redused pollution.
4. Chemical fertiliser are used to form biofertiliser.
- c. Biofertilisers are used over chemical fertilizer to redused pollution.