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Class 5 Science Chapter 4 Test 1

Welcome to your Class 5 Science Chapter 4 Test 1

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1. 
The matter that could not break down into simple substances by natural process is called _______materials.

2. 
There are _______ types of environmental pollution.

3. 
The poisonous substances emitting form the chimney of the factories and smoke after dissolving in rain water produces _______ rain.

4. 
_______ gases are considered fossil fuel.

5. 
The substances that cause pollution are called _______.

6. 
The invisibility in winter is due to _______.

7. 
To reduce pollution of non-biodegradable things the principle of _______ is applied.

8. 
Carbon dioxide, methane, nitrogen oxide, etc. are called _______ gases.

9. 
_______ were formed from the buried remains of plants and animals.

10. 
The greenhouse is _______ inside even in winter season.

11. 
The increase in the average temperature of the Earth is called _______ warming.

12. 
Which disease is caused due to air pollution?

13. 
In green house:

14. 
The particular place where an organism lives is called its _______.

15. 
The green houses gases allow the sunlight to reach the Earth, but does not allow leaving the heat of the Earth, this process is called _______ effect.

16. 
Such matters which become part of the soil after broken down by natural process into simple substances are called _______ materials. (Meat, paper, etc).

17. 
Pollutant gases in air combine together in presence of sunlight and produce _______.

18. 
Which one of these is non-biodegradable?

19. 
Which one of the following acts causes most of the air pollution?

20. 
The germs present in it caused typhoid;

21. 
Which of the following is not a greenhouse gas?

22. 
Greenhouse is a house made of _______ material.

23. 
Any change in the environment which is harmful for living thing is called environmental _______.