Available Answers

1. 1.

   You are looking at a picture of a city.

   Do you see a thick layer of smog hanging over the buildings? What do you think is causing this smog, and how do you think it affects the people living in the city?

    

2. 2.

   How can we contribute towards reduction of pollution?

3. 3.

   Do you agree that our modern lifestyle is the major cause of different types of pollution?

4. 4.

   Choose the correct answer.

   1. Which of these is a poisonous gas emitted from factories?
      1. Carbon monoxide
      2. Sulphur dioxide
      3. Nitrogen oxide
      4. Oxygen
   2. Which type of pollution is caused by burning dry leaves?
      1. Noise pollution
      2. Water pollution
      3. Air pollution
      4. Soil pollution
   3. Which of these are water borne diseases?
      1. Jaundice
      2. Dysentery
      3. Skin disease
      4. Common cold
   4. Which type of pollution is caused by loudspeakers?
      1. Noise pollution
      2. Water pollution
      3. Soil pollution
      4. Air pollution
   5. Which of these is a soil pollutant?
      1. Lead
      2. Pesticides
      3. Chemical fertilizers
      4. All of these
5. 5.

   Match the columns.

   A	B
   1. Factor that causes pollution	a. Water pollution
   2. Dumping industrial waste into river	b. Air pollution
   3. Loud music	c. Polluter
   4. Overuse of pesticide	d. Noise pollution
   5. Emission from vehicles	e. Soil pollution

    

6. 6.

   Fill in the blanks.

   1. Pollutant is a ______________ which causes pollution.
   2. A polluter is the person or factor that ______________ pollution.
   3. It is very important to maintain the ______________ of gases in the atmosphere.
   4. Industries should reduce release of ______________ gases into the environment.
   5. ______________ pollution is the result of build-up of harmful substances in the soil.