Statement-I: Heterotrophic bacteria are the most abundant bacteria they have a significant impact on human affairs. Statement-II: Heterotrophic bacteria are helpful in making curd, production of Antibiotics and fixation of nitrogen.
- ABoth Statement-I and Statement-II are True and Statement-II is a correct explanation of Statement-I
- BBoth Statement-I and Statement-II are True but Statement-II is not a correct explanation of Statement-I
- CStatement-I is True but Statement-II is False
- DBoth Statement-I and Statement-II are False
✓ Correct answer: A
Want the full step-by-step reasoning?