Geography
Answer
Noise from industries, railways, crackers, explosions and commotion in the cities and aircraft, affect animals, birds, mice, fishes and domestic animals in the following ways-
- Birds avoid migrating to places where noise level is above 100 dB.
- The noise emissions caused by supersonic aircraft and railways may cause miscarriage in mammals and fishes as well.
- Some of the birds have been found to have stopped laying eggs due to noise pollution.
Related Questions
Assertion (A): Birds avoid migrating to places where noise level is above 100 dB.
Reason (R): Doctors and scientists have now medically confirmed that noise disturbs living organisms.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Given below are scenes, list the pollutants generated by each. How does each pollutant affect (i) environment; (ii) humans and other living beings; and (iii) materials?

Picture A

Picture B

Picture C

Picture D
What major harm is done to human beings by air pollution?
How are animals affected by air pollution?