Question

Mention the main sources of noise pollution.

Hint:

Think of everyday loud things: traffic, factories, construction, and loudspeakers.

Answer 1

Step 1: Understanding the Concept:
Noise pollution is unwanted or excessive sound that disturbs the natural balance and can harm human health (hearing loss, stress, hypertension).

Step 2: Main Sources:
(1) Transport/traffic — vehicles, trains, and aircraft; (2) Industrial machinery — factories and generators; (3) Construction activity — drilling, pile-driving, heavy equipment; (4) Loudspeakers and social/religious events — festivals, celebrations, public address systems.

Step 3: Final Answer:
The main sources of noise pollution are transport/vehicular traffic, industrial machinery, construction work, and loudspeakers used at social and religious functions.