Q. Which of the following are the activities contributed by Microbes?
1. Conversion of Nitrogen in the air to ammonia, urea or other compounds for plants
2. Conversion of carbon Dioxide and Water in the ocean into carbohydrates and Oxygen.
3. Digestion of natural milk in the babies.
Answer using the codes given below
Answer: D
Notes:
To make plant growth possible, you need a certain amount of nitrogen. But the nitrogen in the atmosphere can’t be used by plants for growth. That must be made accessible or fixed into ammonia, urea or some compound plants can use — only microbes can do that.
Source: Times of India
