Particulate matter causes ____ in human.

Options

A. Respiratory diseases
B. Cardiovascular diseases
C. Skeletal disorders
D. Digestive illness

Answer

**Step-by-Step Solution:**

1. **Understanding Particulate Matter:**
- Particulate matter (PM) refers to tiny solid and liquid particles that are suspended in the air. These particles can vary in size and composition.

2. **Identifying the Effects of Particulate Matter:**
- Particulate matter can have various health effects on humans. It is important to identify which health issues are commonly associated with exposure to particulate matter.

3. **Analyzing the Options:**
- The question provides four options regarding what particulate matter causes in humans:
1. Respiratory disease
2. Cardiovascular disease
3. Skeletal disorder
4. Digestive illness

4. **Evaluating Each Option:**
- **Option 1: Respiratory disease** - This is a well-documented effect of particulate matter, as inhaling these particles can lead to conditions like asthma and other respiratory issues.
- **Option 2: Cardiovascular disease** - While particulate matter can contribute to heart problems, it is not the primary health issue associated with it.
- **Option 3: Skeletal disorder** - Particulate matter does not typically cause skeletal disorders.
- **Option 4: Digestive illness** - Particulate matter is not known to cause digestive issues.

5. **Conclusion:**
- Based on the analysis, the correct answer is that particulate matter primarily causes **respiratory disease** in humans.

**Final Answer: Particulate matter causes respiratory disease in humans.**

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