Question

energy derived from animal excreta and plant waste is called​

Answer 1

Answer:

Biogas, approximately 60% methane by volume, is generated through the bacterial breakdown of faecal matter, and any other organic matter, in an oxygen free (anaerobic) system. Dried and charred faecal sludge, meanwhile, has energy content similar to coal and charcoal.

Answer 2

I don't know sorry brother