Question

please help me I m stuck in it​

Answer 1

Answer:

hey what is ur today Planing of ur b.day..?

Explanation:

State two economically important uses of (a) Heterotrophic bacteria (b) Archaebacteria. Maintain soil fertility by nitrogen fixation, ammonification and nitrification, e.g., Rhizobium bacteria (in the root nodules of legumes). The milk products such as bufter, cheese, curd, etc., are obtained by the action of bacteria.