What is thermal pollution and what harm does it do?
Pollution
Original Khojo Papers practice question — not from a past board paper.
Continuous loud noise causes loss of hearing, which may become permanent. It raises blood pressure and causes headache, irritability and loss of sleep, and it interferes with concentration and with speech.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
A sound level above about 80 decibels sustained over long periods is regarded as harmful.
From the same topic and chapter, at a similar level.
What is thermal pollution and what harm does it do?
Pollution
Suggest four ways in which a city can reduce its air pollution.
Pollution
What is biomagnification? Give one example.
Pollution
State three sources of air pollution and one effect of each.
Pollution
What is eutrophication and how is it caused?
Pollution
What is a non-biodegradable pollutant? Give two examples and state why they are a problem.
Pollution