Geetha Iyer Solutions for Exercise 3: EXERCISE

Author:Geetha Iyer

Geetha Iyer Science Solutions for Exercise - Geetha Iyer Solutions for Exercise 3: EXERCISE

Attempt the practice questions from Exercise 3: EXERCISE with hints and solutions to strengthen your understanding. Science Now 8 solutions are prepared by Experienced Embibe Experts.

Questions from Geetha Iyer Solutions for Exercise 3: EXERCISE with Hints & Solutions

EASY
8th CBSE
IMPORTANT

Which of the following is a disease caused due to air pollution?

EASY
8th CBSE
IMPORTANT

Volcanic eruption is a natural source of air pollution.

EASY
8th CBSE
IMPORTANT

Fertilisers and pesticides in the runoff water from the fields lead to water pollution.

EASY
8th CBSE
IMPORTANT

Increase in the growth of bacteria in water bodies decreases the oxygen level in that water.

EASY
8th CBSE
IMPORTANT

Discharge of hot water into water bodies does not affect aquatic animals.

EASY
8th CBSE
IMPORTANT

Air pollution can be minimised by afforestation.

EASY
8th CBSE
IMPORTANT

The pollutants contributing to the depletion of the ozone layer are _____. (chlorofluorocarbons/methyl mercury)

EASY
8th CBSE
IMPORTANT

The method used for disinfection of water is called _____. (chlorination/alum)