Olympiad Science - Water - A Precious Resource
Exam Duration: 45 Mins Total Questions : 30
Which of the following is a drinking water source?
- (a)
Sea water
- (b)
Glaciers
- (c)
Ground water
- (d)
Snow
What is water?
- (a)
A stable atom
- (b)
A stable element
- (c)
A stable mixture
- (d)
A stable compound
Why does ice float on water?
- (a)
Ice is heavier than water.
- (b)
Ice is cooler than water
- (c)
Ice is lighter than water.
- (d)
Ice is a liquid.
Which of the following statements is correct of the water table of a place?
- (a)
It changes from place to place.
- (b)
It changes from time to time
- (c)
It goes down when rains are less
- (d)
All of the above
Why is sea water unfit for use in factories though it is available in plenty
- (a)
It contains bacteria
- (b)
It has foul smell
- (c)
It is heavier than tap water.
- (d)
It has salts which get deposited in the pipelines and boilers
What is water in which 2% or more of salts are dissolved in it called?
- (a)
Distilled water
- (b)
Pure water
- (c)
Saline water
- (d)
Mineral water
What is the percentage of unutilized water due to lack of proper management?
- (a)
5%
- (b)
8%
- (c)
6%
- (d)
10%
Which of these is due to condensation?
- (a)
Drying of wet clothes
- (b)
Water drops appear on cool water bottle
- (c)
Steam rises from wet clothes when they are ironed
- (d)
Black board dries up after wiping it
How is surface water used?
(i) For domestic purpose
(ii) For irrigation purpose
(Hi) For industrial purpose
- (a)
Only (i) and (ii)
- (b)
Only (ii) and (iii)
- (c)
Only (i) and (iii)
- (d)
(i), (ii) and (iii)
What is water that is available under the ground called?
- (a)
Water cycle
- (b)
Water body
- (c)
Water table
- (d)
WWTP
What is the main source of water for perennial?
- (a)
Lakes
- (b)
Rain water
- (c)
Snow
- (d)
Dams
Which of the following states of India had a city that faced acute water shortage in the year 1985?
- (a)
Haryana
- (b)
Rajasthan
- (c)
Maharashtra
- (d)
Punjab
About what percentage of earth's surface is covered with water?
- (a)
30%
- (b)
41%
- (c)
71%
- (d)
89%
What is the source of ground water?
- (a)
Subsoil water
- (b)
Condensation of air trapped in soil
- (c)
Rain water
- (d)
All of the above
Where does rain water, after percolation, get collected?
- (a)
Above the surface of the igneous rocks
- (b)
Above the surface of the impervious rocks
- (c)
Above the surface of the granite rock
- (d)
Above the surface of the basalt rock
Which of the following is the purest form of fresh water?
- (a)
Well water
- (b)
Rain water
- (c)
Sea water
- (d)
Tank water
What happens to water table if a large area is covered with construction activities?
- (a)
It becomes less
- (b)
It remains constant
- (c)
It becomes more
- (d)
It depends on the
What happens to plants in areas of scanty rainfall ?
- (a)
They grow extensively.
- (b)
They move to other places
- (c)
They wilt and die
- (d)
They have active growth
In which of the following seasons will water consumption by all living beings be more?
- (a)
Winter
- (b)
Autumn
- (c)
Summer
- (d)
Rainy
Identify the oil which may exist along with ground water over the bedrocks?
- (a)
Crude oil
- (b)
Mustard oil
- (c)
Sand oil
- (d)
Groundnut oil
What happens to ground water when it comes into contact with the interior of the earth?
- (a)
It solidifies to form ice.
- (b)
It absorbs heat and gets converted to steam
- (c)
It is not effected by heat
- (d)
It does not absorb heat
Which power is generated from water?
- (a)
Nuclear power
- (b)
Thermonuclear power
- (c)
Thermal power
- (d)
Hydroelectric power
Which of the following, if used regularly. can kill germs in overhead storage tanks in our houses
- (a)
Sand
- (b)
Chlorine tablets
- (c)
Chewable tablets
- (d)
Chalk powder
Why is water called a universal solvent?
- (a)
It can dissolve only solids.
- (b)
It can dissolve only liquid
- (c)
It can dissolve oil
- (d)
It can dissolve 90% of the substances
Which of the following terms is NOT associated with ground water?
- (a)
Water table
- (b)
Infiltration
- (c)
Aquifer
- (d)
Rain water
Which of the following graphs correctly shows the expansion of water at a temperature of 4 C?
- (a)
- (b)
- (c)
- (d)
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)
- (b)
(iv), (ii), (i), (iii)
- (c)
(ii), (iv), (i), (iii)
- (d)
(iii), (i), (iv), (ii)
Which of these can raise the water table of a place?
- (a)
Rainfall
- (b)
Digging bores
- (c)
Digging wells
- (d)
Sea water
Which of the following is the correct sequence of the water cycle in nature?
- (a)
Evaporation, Precipitation, Condensation
- (b)
Precipitation, Condensation, Evaporation.
- (c)
Evaporation, Condensation, Precipitation.
- (d)
Condensation, Evaporation, Precipitation
How is most of the well water and springwater replenished?
- (a)
By rivers
- (b)
By floods
- (c)
By ground water
- (d)
All of the above