Test Details

Pollution Of Air And Water,Some Natural Phenomena

Feb 25, 9:20 PM

30 minutes

Feb 25, 9:50 PM

50.0 marks

MCQ

25 questions

Pankaj kumar yadav

Class Details

Maths

English

Maths

English

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Question Text

Question 1 :
Name any two water pollutants which are toxic for plants and animals.

Question 2 :
When air is contaminated by unwanted substances which have a harmful effect on both the living and the non-living, it is referred to as _____ pollution

Question 3 :
The average temperature of the earth’s atmosphere is gradually increasing. What is it called?

Question 6 :
By volume, about __% of the air mixture is nitrogen and about __% is oxygen.

Question 7 :
We should always use more chlorine tablets than specified. State true or false.

Question 8 :
Once the algae in water die, they serve as a food for decomposers like -

Question 9 :
The Ganga at which part in Uttar Pradesh (U.P.), has one of the most polluted stretches of the river?

Question 10 :
State True or False. Chlorination is a commonly used chemical method for killing germs in water.

Question 11 :
State True or False. The towns and cities, through which the Ganga river flows, throw large quantities of garbage, untreated sewage, dead bodies, and many other harmful things, directly into the river

Question 12 :
Which ambitious plan to save the Ganga river was launched in 1985?

Question 13 :
The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is ________.

Question 14 :
Lightning Conductor is a device used to protect buildings from the effect of lightning. Is it TRUE OR FALSE?

Question 15 :
One natural phenomenon which we are not yet able to predict accurately is

Question 16 :
_________ and _________ charges meet, producing streaks of bright light and sound.

Question 18 :
Earthing is provided in buildings to protect us from electrical shocks due to any leakage of ?

Question 19 :
Why our hair stands when we take off woollen or polyester cloth?

Question 20 :
The strips carrying similar charges _________ each other and they become wide open.

Question 21 :
Which process is called when negative and positive charges meet, producing streaks of bright light and sound in clouds?

Question 22 :
State true or false. Tremors on the earth can also be caused by the eruption of a volcano.

Question 23 :
What precautions should be taken if you are outside the house during a earthquake?

Question 24 :
What precautions should be taken if you are Inside the house during a earthquake?

Question 25 :
What precautions should be taken if one is outside in a forest where no shelter is available and you are in an open field during a thunderstorm?

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