State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria
(a) Heterotrophic micro organism (1) They act as decomposers and assist withinside the formation of humus. (2) They assist withinside the manufacturing of curd from milk. (3) Many antibiotics are received from a few species of micro organism. (4) Many soil micro organism assist in fixation of atmospheric nitrogen. (b) Archaebacteria (1) Methane fueloline is made from the dung of ruminants through the methanogens. (2) Methanogens also are concerned withinside the formation of biogas and sewage treatment.
