PDF chapter test TRY NOW
1. The gas released during the preparation of bread is
2. The disease caused by a protozoan and spread by an insect is
3. Paheli dug two pits, A and B, in her garden. In pit A, she put a polythene bag packet with some agricultural waste. In pit B, she dumped the same kind of waste but without packing it in a polythene bag. She, then covered both the pits with soil. What did she observe after a month?
Register for free to see more content