What do you mean by biomagnification of harmful chemicals ? How does this phenomenon affect the human health ?

Explanation

### Step-by-Step Text Solution

1. **Definition of Biomagnification**:
Biomagnification refers to the process by which harmful and toxic substances accumulate in the tissues of living organisms as they move up the food chain. This accumulation starts from lower trophic levels and increases as it progresses to higher levels.

2. **Process of Biomagnification**:
- It begins when pollutants are absorbed by lower organisms, such as plants or small fish, from their environment (water, soil, etc.).
- As these lower organisms are consumed by higher organisms (like larger fish, birds, or mammals), the concentration of these pollutants increases in the tissues of the higher organisms.
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