Page 105 - Active Science 5 Ebook and Activity

Practice Time

A. Tick the correct option.

1. Environment is very important for the survival of ________________.
a. plants b. animals

c. human beings d. all the above
2. Which disease is caused by air pollution?

a. Lung cancer b. Diarrhoea
c. Hypertension d. Typhoid

3. Diseases like diarrhea, cholera, typhoid are caused by ___________ pollution.
a. land b. air
c. water d. noise

4. Which activity causes soil erosion?
a. Spread of harmful gases b. Excessive use of chemicals

c. Deforestation d. Sound from machines
5. Which pollution causes heart diseases?
a. Air pollution b. Water pollution

c. Land pollution d. Noise pollution
6. Which pollution can be reduced by disposal and management of waste?

a. Air pollution b. Noise pollution
c. Land pollution d. Both a and c

B. Match the following.

1. Environment a. noise pollution
2. Air pollution b. waste from industries and sewage
pipelines
3. Water pollution c. Greenhouse Effect
4. Hypertension and hearing impairment d. land pollution
5. Excessive chemicals e. glass, plastic and metal
6. Land pollution f. living and non-living things

C. Write two examples of the following.

1. Names of things that surround us ________________________________________
2. Types of pollution ________________________________________

3. Causes of noise pollution ________________________________________
4. Diseases caused by air pollution ________________________________________

5. Gases that cause Greenhouse Effect ________________________________________
6. Diseases caused by water pollution ________________________________________

7. Reason of soil erosion ________________________________________

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