Questions

[3 Mark Question Answer]

🎯

Test yourself on this topic

2 questions · timed · auto-graded

Question 13 Marks
How does noise pollution affect animals?
Answer
Noise from industries, railways, crackers, explosions, and commotion in the cities and aircraft, affect animals, birds, mice, fishes, and domestic animals. Birds avoid migrating to places where the 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
View full question & answer
Question 23 Marks
What harm did radioactive pollution do in the Chernobyl disaster?
Answer
After the disaster, four square kilometers of pine forest near the reactor turned reddish-brown and died. Horses also died 6 km. away by thyroid damage the whole of western USSR and other European countries are contaminated by gamma emitters deposited on the soil. Meat and dairy products were contaminated with Caesium-137. About 7,00,000 people became exposed to Chernobyl radiation, expecting bad health problems.
View full question & answer
[3 Mark Question Answer] - Geography STD 9 Questions - Vidyadip