Test Details

Pollution Of Air And Water

Jan 29, 1:45 PM

30 minutes

Jan 29, 2:15 PM

60.0 marks

MCQ

30 questions

Sambhu Sir,

Class Details

General Science

Class VIII

General Science

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Question Text

Question 1 :
Incomplete combustion of fuel such as petrol and diesel gives ______.

Question 3 :
Is there a need to switch over to alternative fuels instead of the fossil fuels for our energy requirements, like solar energy, hydropower and wind energy?

Question 4 :
Which of the following is not a source of air pollution?

Question 7 :
Acid rain corroding the marble of the monument is called _____

Question 9 :
Combustion of fossil fuels generates a lot of air pollution. Can you suggest any two alternative sources of energy which do not cause any pollution?

Question 10 :
In the following statements, the words in inverted commas are jumbled up. Write them in their correct form.Gangotri glacier in Himalaya has started melting because of 'lablog ringwam'.

Question 12 :
Suspended particulate matter, such as the soot particles emitted by _______ refinery, has contributed towards the yellowing of the marble of Taj Mahal.

Question 14 :
The sun’s heat is allowed to get in but is not allowed to go out. The trapped heat warms the _______.

Question 15 :
The average temperature of the earth’s atmosphere is gradually increasing. What is it called?

Question 16 :
Which of the following procedures will give you water free from all impurities?

Question 18 :
Can we plant trees and nurture the ones already present in the neighbourhood to save trees and stop pollution?

Question 21 :
Which refineries are a major source of gaseous pollutants like sulphur dioxide and nitrogen dioxide?

Question 22 :
State True or False. We can survive for some time without air but we cannot survive even for a few minutes without food.

Question 23 :
Deforestation leads to _______ in the amount of $CO_{2}$ in the air because the number of trees which consume $CO_{2}$ is ______

Question 27 :
Boojho wishes to contribute in reducing air pollution. Which vehicle should he use for going to school?

Question 28 :
State True or False. The Gangotri glacier in the Himalayas has started melting because of global warming.

Question 29 :
In the following statements, the words in inverted commas are jumbled up. Write them in their correct form. Carbon dioxide, 'thaneme', nitrous oxide and water vapour are known as 'heengrouse sesga'.

Question 30 :
State True or False. Chlorination is a commonly used chemical method for killing germs in water.

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