Question

Which of the following diseases is not caused by air pollution?

• A. Nightblindness
• B. Skin disease
• C. Respiratory disease
• D. Headache

Hint:

To answer this type of question, categorize the cause of each condition. Nightblindness is a nutritional issue, while the others can be environmental.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
The question asks to identify the health condition from the list that does not have air pollution as a potential cause.

Step 2: Detailed Explanation:
- Respiratory disease: This is the most direct and well-known effect of air pollution. Pollutants like particulate matter and ozone can cause or worsen conditions like asthma, bronchitis, and lung cancer.
- Skin disease: Air pollutants can settle on the skin, causing irritation, acne, eczema, and premature aging.
- Headache: Exposure to pollutants like carbon monoxide or volatile organic compounds (VOCs) can reduce oxygen supply to the brain, leading to headaches.
- Nightblindness (nyctalopia) is the inability to see well at night or in poor light. The most common cause is a deficiency of Vitamin A, which is essential for the function of the retina. It is a nutritional deficiency, not a disease caused by pollution.

Step 3: Final Answer:
While air pollution can cause respiratory diseases, skin issues, and headaches, nightblindness is caused by a Vitamin A deficiency.