Name three ways by which disease-causing pathogens can enter our body.

Explanation

### Step-by-Step Solution:

1. **Understanding Pathogens**:
- Pathogens are microorganisms that cause diseases in humans and other living organisms. They can enter our bodies through various routes.

2. **First Method - Air, Water, or Food**:
- Pathogens can enter through the air, water, or food. For example, the disease tuberculosis (TB) can spread through air. When a person infected with TB coughs or sneezes, they release droplets containing the pathogen into the air. If another person inhales these droplets, they can become infected.

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