Biogas production is</h2></div>

Domestic sewage of large cities.</h2></div>

Which one of the following is the correct order of conversion of waste materials during biogas formation?</h2><…

On which medium do certain bacteria grow to produce biogas?

The following diagram represents ________

The bacteria nostoc are used as food because they have abundant amount of ________ and _______.</h2></div>

Azolla gives a good biofertilizer when mixed with</h2></div>

Why lyophilized cultures of microbes remain viable for several years?</h2></div>