Anaerobic bacteria digest animal waste and produce biogas (change-A). The biogas is then burnt as fuel ( change-B). The following statements certain to these changes. Choose the correct one. 1) process -A is a chemical change 2) process -B is a chemical change 3)both processes A and B are chemical changes 4 none of these processes is a chemical change
Answers
Answered by
0
Both processes A and B are chemical changes
Similar questions