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question_answer1)
Which of the following is a drinking water source?
A)
Sea water done
clear
B)
Glaciers done
clear
C)
Ground water done
clear
D)
Snow done
clear
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question_answer2)
Which of the following causes depletion in the water table of a place?
A)
Constructing factories and houses done
clear
B)
Making concrete roads and floors done
clear
C)
Deforestation done
clear
D)
All of the above done
clear
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question_answer3)
What makes the earth appear blue from the outer space?
A)
The presence of forest done
clear
B)
The presence of sky done
clear
C)
The presence of water done
clear
D)
All of the above done
clear
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question_answer4)
What is the percentage of water in the human body?
A)
80% done
clear
B)
70% done
clear
C)
60% done
clear
D)
50% done
clear
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question_answer5)
What is water?
A)
A stable atom done
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B)
A stable element done
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C)
A stable mixture done
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D)
A stable compound done
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question_answer6)
Why does ice float on water?
A)
Ice is heavier than water. done
clear
B)
Ice is cooler than water. done
clear
C)
Ice is lighter than water. done
clear
D)
Ice is a liquid. done
clear
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question_answer7)
Which of the following statements is correct of the water table of a place?
A)
It changes from place to place. done
clear
B)
It changes from time to time. done
clear
C)
It goes down when rains are less. done
clear
D)
All of the above done
clear
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question_answer8)
Which property of water is used while washing clothes?
A)
Odour done
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B)
Colour done
clear
C)
Solubility done
clear
D)
Mass done
clear
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question_answer9)
Which of the following is NOT soluble in water?
A)
Salt done
clear
B)
Sugar done
clear
C)
Oxygen done
clear
D)
Sand done
clear
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question_answer10)
Why is sea water unfit for use in factories though it is available in plenty?
A)
It contains bacteria. done
clear
B)
It has foul smell. done
clear
C)
It is heavier than tap water. done
clear
D)
It has salts which get deposited in the pipelines and boilers. done
clear
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question_answer11)
What is water in which 2% or more of salts are dissolved in it called?
A)
Distilled water done
clear
B)
Pure water done
clear
C)
Saline water done
clear
D)
Mineral water done
clear
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question_answer12)
What is the percentage of unutilized water due to lack of proper management?
A)
5% done
clear
B)
8% done
clear
C)
6% done
clear
D)
10% done
clear
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question_answer13)
Which of these is due to condensation?
A)
Drying of wet clothes done
clear
B)
Water drops appear on cool water bottle done
clear
C)
Steam rises from wet clothes when they are ironed done
clear
D)
Black board dries up after wiping it done
clear
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question_answer14)
How is surface water used?
(i) For domestic purpose |
(ii) For irrigation purpose |
(iii) For industrial purpose |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer15)
What is water that is available under the ground called?
A)
Water cycle done
clear
B)
Water body done
clear
C)
Water table done
clear
D)
WWTP done
clear
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question_answer16)
What is the main source of water for perennial rivers?
A)
Lakes done
clear
B)
Rainwater done
clear
C)
Snow done
clear
D)
Dams done
clear
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question_answer17)
Which of the following states of India had a city that faced acute water shortage in the year 1985?
A)
Haryana done
clear
B)
Rajasthan done
clear
C)
Maharashtra done
clear
D)
Punjab done
clear
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question_answer18)
Which of the following contaminate water?
A)
Fertilizers done
clear
B)
Pesticides done
clear
C)
Human waste done
clear
D)
All of the above done
clear
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question_answer19)
About what percentage of earth's surface is covered with water?
A)
30% done
clear
B)
45% done
clear
C)
71% done
clear
D)
89% done
clear
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question_answer20)
What is the source of ground water?
A)
Subsoil water done
clear
B)
Condensation of air trapped in soil done
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C)
Rain water done
clear
D)
All of the above done
clear
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question_answer21)
Where does rain water, after percolation, get collected?
A)
Above the surface of the igneous rocks done
clear
B)
Above the surface of the impervious rocks done
clear
C)
Above the surface of the granite rock done
clear
D)
Above the surface of the basalt rock done
clear
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question_answer22)
Which of the following is the purest form of fresh water?
A)
Well water done
clear
B)
Rain water done
clear
C)
Sea water done
clear
D)
Tank water done
clear
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question_answer23)
What happens to water table if a large area is covered with construction activities?
A)
It becomes less. done
clear
B)
It remains constant. done
clear
C)
It becomes more. done
clear
D)
It depends on the area. done
clear
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question_answer24)
What happens to plants in areas of scanty rainfall?
A)
They grow extensively. done
clear
B)
They move to other places. done
clear
C)
They wilt and die. done
clear
D)
They have active growth. done
clear
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question_answer25)
In which of the following seasons will water consumption by all living beings be more?
A)
Winter done
clear
B)
Autumn done
clear
C)
Summer done
clear
D)
Rainy done
clear
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question_answer26)
Identify the oil which may exist along with ground water over the bedrocks?
A)
Crude oil done
clear
B)
Mustard oil done
clear
C)
Sand oil done
clear
D)
Groundnut oil done
clear
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question_answer27)
What happens to ground water when it comes into contact with the interior of the earth?
A)
It solidifies to form ice. done
clear
B)
It absorbs heat and gets converted to steam. done
clear
C)
It is not effected by heat. done
clear
D)
It does not absorb heat. done
clear
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question_answer28)
Which power is generated from water?
A)
Nuclear power done
clear
B)
Thermonuclear power done
clear
C)
Thermal power done
clear
D)
Hydroelectric power done
clear
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question_answer29)
Which of the following, if used regularly can kill germs in overhead storage tanks in our houses?
A)
Sand done
clear
B)
Chlorine tablets done
clear
C)
Chewable tablets done
clear
D)
Chalk powder done
clear
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question_answer30)
Why is water called a universal solvent?
A)
It can dissolve only solids. done
clear
B)
It can dissolve only liquids. done
clear
C)
It can dissolve oils. done
clear
D)
It can dissolve 90% of the substances. done
clear
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question_answer31)
Which of the following maintains balance of water on the earth?
A)
Water table done
clear
B)
Glaciers done
clear
C)
Aquifer done
clear
D)
Water cycle done
clear
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question_answer32)
Two plastic bottles with their bottoms cut are pushed into a trough of water as shown in the figure.
Why is the level of water in bottle W less than the level of water in bottle 'B?
A)
Water occupies space in bottle. done
clear
B)
Atmospheric pressure in bottle A is more than that of bottle B. done
clear
C)
Water takes the shape of the container. done
clear
D)
Air occupies space. done
clear
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question_answer33)
Which of the following terms is NOT associated with ground water?
A)
Water table done
clear
B)
Infiltration done
clear
C)
Aquifer done
clear
D)
Rain water done
clear
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question_answer34)
Which of the following graphs correctly shows the expansion of water at a temperature of \[4{{\,}^{o}}C?\]
A)
B)
C)
D)
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question_answer35)
Why is pure water very difficult to obtain?
A)
Water is impure in nature. done
clear
B)
Water cannot exist in pure state. done
clear
C)
Water is a universal solvent. done
clear
D)
Impurities cannot be filtered from water. done
clear
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question_answer36)
Sohail?s teacher asked to identify the correct order of the processes listed below to purify water and make it safe for drinking.
(i) Filtration |
(ii) Sedimentation |
(iii) Chlorination |
(iv) Addition of chemicals |
Which of the following is the correct order that Sohail arranged?
A)
(i), (iii), (iv),(ii) done
clear
B)
(iv), (ii), (i), (iii) done
clear
C)
(ii), (iv), (i), (iii) done
clear
D)
(iii), (i), (iv), (ii) done
clear
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question_answer37)
Which of the following methods can be used to control water pollution?
(i) Avoiding the use of chemical substances freely. |
(ii) Educating society about the dangers of water pollution. |
(iii) Using biological control in agricultural areas instead of using pesticides. |
A)
Only (i) and (ii) done
clear
B)
Only (ii) and (iii) done
clear
C)
Only (i) and (iii) done
clear
D)
(i), (ii) and (iii) done
clear
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question_answer38)
Which of these can raise the water table of a place?
A)
Rainfall done
clear
B)
Digging bores done
clear
C)
Digging wells done
clear
D)
Sea water done
clear
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question_answer39)
Which of the following is the correct sequence of the water cycle in nature?
A)
Evaporation, Precipitation, Condensation. done
clear
B)
Precipitation, Condensation, Evaporation. done
clear
C)
Evaporation, Condensation, Precipitation. done
clear
D)
Condensation, Evaporation, Precipitation. done
clear
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question_answer40)
How is most of the well water and spring- water replenished?
A)
By rivers done
clear
B)
By floods done
clear
C)
By ground water done
clear
D)
All of the above done
clear
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