Question

us what is biegas? How can biogas be obtained?
why is the use of biogas obtained from cow dung advised in preference to burning cow dung cakes​

Answer 1

Answer:

Bio gas is the mixture of gases that are obtained from the breakdown of organic matter. It is only obtained in the absence of oxygen.

The use of bio gas obtained from cow dungs is advised to use as compared to cow dung cakes because there are many disadvantages in using cow dung like: It contains important nutrients like nitrogen and phosphorus.So, burning of cow dung destroys useful nutrients.

hope it helps...

Answer 2

What is biogas? How can biogas be obtained? Why the use of biogas obtained from cow dung is advised to use as compared to cow dung cakes?

Ans. Biogas is a mixture of gases namely methane,CO2,H2,H2S. it is obtained from an aerobic decomposition of cow dung and plants and animal wastes in a biogas plants. Biogas is advised for burning in preference to burning of cow- dung cakes because:

(i) it cause no air pollution

(ii) It is a cheaper source of energy.