Noise Pollution MCQ with answer and solution

Concept

Noise directly causes hearing damage, stress and anxiety, and drives birds and animals away. Stomach problems come only indirectly, through stress.

Step-by-step solution

1. List the direct effects of noise: hearing loss, irritation, anxiety, stress, sleep loss, poor communication. 2. Noise also directly affects wildlife. Birds leave noisy cities because noise disturbs their calls and nesting. 3. A stomach disorder such as an ulcer is not caused by sound itself. It comes from long-term stress caused by noise, so it is an indirect effect. 4. So the answer is (A).

Explanation

Hearing loss and anxiety happen directly because of loud or continuous noise. Birds move away from noisy cities as a direct response to noise. A stomach disorder is a secondary effect that comes through stress, so it is not a direct effect.

Why the other options are wrong

B: Hearing loss is the most direct effect of high noise levels. C: Anxiety and irritation are direct psychological effects of noise. D: Birds leave noisy areas as a direct response to noise.

Shortcut

Ear, mind and animal behaviour are direct effects. Effects on internal organs like the stomach come indirectly through stress.

Common mistake

Choosing D because it is about birds and not humans. Noise pollution affects animals directly too.