Question

Discuss three important ways in which bateria are use full to us and two ways in which they are harmful​

Answer 1

Explanation:

Digestion is helped in by bacteria E. coli, Nitrogen is converted in by Rhizobium and antibiotics can be made by Streptomyces. Bacteria can cause harmful diseases like pneumonia or meningitis. They can also cause food poisoning by contaminating the food by their presence