Write few points on the usefulness of microorganisms in our lines.

Explanation

### Step-by-Step Solution:

1. **Introduction to Microorganisms**: Microorganisms include various types of organisms such as bacteria, fungi, yeast, viruses, and protozoa. They can be both harmful and beneficial to humans.

2. **Curd Formation**: One of the primary uses of microorganisms is in the production of curd. The bacterium *Lactobacillus* is responsible for converting milk into curd through fermentation.

3. **Bread Making**: Yeast, a type of fungus, is essential in the baking industry. It ferments sugars in the dough, producing carbon dioxide gas, which helps the bread rise and gives it a light texture.

...