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Emphysema, Hay fever and allergy are cau...

Emphysema, Hay fever and allergy are caused by

A

Aerosols

B

Pollen

C

Iron dust

D

Cotton dust

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Conditions**: First, let's define the conditions mentioned in the question: - **Emphysema**: A lung condition that causes shortness of breath due to damage to the alveoli (air sacs) in the lungs. - **Hay Fever**: An allergic reaction characterized by sneezing, runny or stuffy nose, often triggered by pollen. - **Allergy**: A condition in which the immune system reacts abnormally to a foreign substance, which can include pollen. 2. **Analyzing the Options**: We are given four options to determine the cause of these conditions: - **Aerosol**: Refers to tiny particles or droplets suspended in the air. While aerosols can transmit diseases, they are not directly linked to emphysema, hay fever, or allergies. - **Pollen**: This is a fine powder produced by flowering plants. It is known to cause allergic reactions, hay fever, and can contribute to respiratory issues, including emphysema. - **Iron Dust**: This is associated with a lung disease called siderosis, which is not related to the conditions mentioned. - **Cotton Dust**: This can lead to a condition known as byssinosis, also unrelated to the conditions in question. 3. **Identifying the Correct Answer**: Based on the analysis: - **Pollen** is the only option that is directly linked to causing emphysema, hay fever, and allergies. 4. **Conclusion**: Therefore, the correct answer is **pollen**. **Final Answer**: Emphysema, hay fever, and allergy are caused by **pollen**. ---
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