Give reasons for the following observations :
Use of synthetic detergents causes pollution of water.

Explanation

### Step-by-Step Solution:

1. **Definition of Synthetic Detergents**: Synthetic detergents are man-made cleaning agents that are designed to remove dirt and grease. Unlike natural soaps, they are often made from petrochemicals.

2. **Biodegradability**: One of the key characteristics of synthetic detergents is that they are not fully biodegradable. This means that they do not break down easily in the environment.

3. **Microorganisms and Decomposition**: In natural water bodies, microorganisms play a crucial role in breaking down organic substances. However, synthetic detergents contain complex chemical structures that are resistant to microbial action.

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