question_answer 1)
The actual source of tap water, supplied by municipal corporation is
A)
river done
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B)
lake done
clear
C)
well done
clear
D)
All of these done
clear
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question_answer 2)
Water is available on the surface of earth in the form of oceans, seas, rivers, ponds, etc. Approximately how much of the earth is covered with water?
A)
1/3 part done
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B)
2/3 part done
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C)
1/2 part done
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D)
1/4 part done
clear
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question_answer 3)
The tap water is considered pure and fit for drinking. Pure water is tasteless but tap water has some taste. This taste in tap water is due to
A)
chemical treatment through which the water has to pass before its supply through taps. done
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B)
certain gases and salts dissolved in water that is supplied as tap water. done
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C)
Both (a) and (b) done
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D)
None of these done
clear
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question_answer 4)
At some places water coming from the underground contains a lot of dissolved minerals and is called
A)
Underground water done
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B)
Spring done
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C)
Natural water done
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D)
None of these done
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question_answer 5)
Ocean water is highly salt is hand unfit for drinking purposes.
A)
Oceans play no role in supply of usable water done
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B)
Role of oceans in supply of usable water is quite important done
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C)
Both the above done
clear
D)
None of these done
clear
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question_answer 6)
Ocean water reaches us
A)
by rivers done
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B)
by ponds done
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C)
by water cycle done
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D)
All of these done
clear
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question_answer 7)
Water cycle means
A)
carrying of water using bicycles done
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B)
carrying of sea water to land by rivers etc. done
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C)
carrying of tap water to our homes done
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D)
circulation of water between ocean and land done
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question_answer 8)
The sea water changes to water vapour
A)
by solar energy done
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B)
by heat of sun done
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C)
Both the above done
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D)
None of these done
clear
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question_answer 9)
The water vapours, that are formed by evaporation of sea water
A)
consist of pure water done
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B)
contains dissolved salts in it done
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C)
Both the above done
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D)
None of these done
clear
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question_answer 10)
Evaporation involves
A)
change of solid to vapour done
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B)
change of liquid to vapour done
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C)
change of solid to liquid done
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D)
change of vapour to liquid done
clear
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question_answer 11)
Evaporation of sea water
A)
takes place during day time done
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B)
takes place during night time done
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C)
takes place throughout day and night done
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D)
takes place only during noon done
clear
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question_answer 12)
Which of the following processes help in transfer of water to air?
A)
Evaporation done
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B)
Condensation done
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C)
Transpiration done
clear
D)
Both (a) and (c) done
clear
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question_answer 13)
Clouds are formed
A)
when water vapours present in air get cooled and change into tiny liquid droplets done
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B)
by the process of evaporation of water vapours done
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C)
by the process of condensation of water vapours done
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D)
Both (a) and (c) are correct done
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question_answer 14)
Floods occur
A)
in those areas where it rains excessively done
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B)
in those areas where we have constructed large dams done
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C)
Both the above done
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D)
None of these done
clear
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question_answer 15)
If there are no rains at a place for a long time it results in
A)
floods done
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B)
drought done
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C)
either floods or drought done
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D)
None of these done
clear
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question_answer 16)
The basic idea behind rain water harvesting is
A)
to harvest water done
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B)
to harvest crops done
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C)
to catch water where it falls done
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D)
All of the above done
clear
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question_answer 17)
Which of the following is an example of reuse of water to prevent its wastage?
A)
By reusing the water from washing clothes to cook done
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B)
By discharging factory waste in rivers and canals done
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C)
By discharging sewage and waste materials into oceans done
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D)
By reusing the water from washing clothes to wash floor done
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question_answer 18)
Water cycle can be represented as
The process that occurs in step 'A' is called
A)
Evaporation done
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B)
Transpiration done
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C)
Condensation done
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D)
None of these done
clear
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question_answer 19)
In water cycle the process that takes place before rains is called
A)
Evaporation done
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B)
Condensation done
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C)
Precipitation done
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D)
Melting done
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question_answer 20)
Water vapours enter the air (or atmosphere) by which of the following processes?
A)
Evaporation of ocean water done
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B)
Transpiration occurring in plants done
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C)
By evaporation of sweat of animals done
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D)
All of the above done
clear
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question_answer 21)
If various steps of water cycle are marked as below: A for rains B for evaporation of water C for water in rivers and lakes D for cloud formation If we take B as the first step in water cycle then the correct arrangement of letters A, B, C and D to correctly represent the water cycle will be
A)
B, D, A, C done
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B)
B, A, C, D done
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C)
B, C, D, A done
clear
D)
B, D, C, A done
clear
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question_answer 22)
In water cycle we studied that water enters in air by some processes. If we say that water vapours that enter the air by process 'A? and by 'B', gets converted into water droplets which of the following correctly identifies 'A and 'B??
A)
A = evaporation B = process of change of water vapours into liquid done
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B)
A = The process involved in the disappearance of water from plate kept in sunlight, B = The process by which a wheat plant loses water to the atmosphere done
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C)
A = The process by which forest plants lose water to the atmosphere B = The process involved in the conversion of water vapours to liquid water done
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D)
and (c) are correct done
clear
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question_answer 23)
Select the process that plays an important role in bringing water back to earth.
A)
Evaporation done
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B)
Condensation done
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C)
Transpiration done
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D)
None of these done
clear
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question_answer 24)
Which of the following is not a form of precipitation?
A)
Hailstorm done
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B)
Snow done
clear
C)
Rain done
clear
D)
None of these done
clear
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question_answer 25)
Hardness of water is due to presence of
A)
salts of calcium done
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B)
salts of magnesium done
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C)
Both (a) and (b) done
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D)
None of these done
clear
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question_answer 26)
Which natural disaster causes famine?
A)
Flood done
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B)
Earthquake done
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C)
Drought done
clear
D)
All of these done
clear
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question_answer 27)
Aquatic plants take in oxygen from
A)
air in the atmosphere done
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B)
dissolved air in water done
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C)
do not need oxygen done
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D)
None of these done
clear
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question_answer 28)
What percentage of water is readily available to us?
A)
3% done
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B)
97% done
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C)
60% done
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D)
40% done
clear
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question_answer 29)
We cannot use seawater because
A)
sea water is salty done
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B)
sea water is polluted done
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C)
of high cost done
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D)
sea water cannot be transported done
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question_answer 30)
Water table refers to
A)
level of surface water done
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B)
level of sea water done
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C)
level of groundwater done
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D)
None of these done
clear
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question_answer 31)
Which of the following statement(s) is/are true? Rainwater contains dissolved gases. (ii) Sea water contains dissolved salts.
A)
Both (i) and (ii) are true done
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B)
Only (i) is true done
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C)
Only (ii) is true done
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D)
None of these done
clear
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question_answer 32)
Purest form of natural water is _____'.
A)
seawater done
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B)
groundwater done
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C)
rainwater done
clear
D)
surface water done
clear
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question_answer 33)
Which of the following statement(s) is/are correct?
A)
Water is called 'Elixir of Life'. done
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B)
Approximately 8 glasses of water is needed to produce a page of your book. done
clear
C)
About 75% of earth is covered with water. done
clear
D)
All of the above. done
clear
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question_answer 34)
Clouds are
A)
water vapours as such done
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B)
water vapours condensed to tiny droplets of water done
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C)
tiny droplets of water and dust particles done
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D)
All of the above done
clear
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question_answer 35)
Rain water harvesting refers to
A)
a method of collecting rain water for our immediate daily use done
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B)
a method of conservation of rains done
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C)
collecting rain water for later use done
clear
D)
All of the above done
clear
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question_answer 36)
Why is the presence of water vapours in air important?
A)
It is important for air to be moist. done
clear
B)
It is important for water cycle in nature. done
clear
C)
It is important as plant get their water from this source. done
clear
D)
None of these done
clear
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question_answer 37)
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column-I Column-II A. Ground water (p) Excess rains B. Ocean (q) Aquifers C. Clouds (r) Water containing dissolved salts D. Floods (s) Water vapour and dirt
A)
\[A\to (p);B\to (q);C\to (r);D\to (s)\] done
clear
B)
\[A\to (q);B\to (r);C\to (s);D\to (p)\] done
clear
C)
\[A\to (r);B\to (s);C\to (p);D\to (q)\] done
clear
D)
\[A\to (s);B\to (p);C\to (q);D\to (r)\] done
clear
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question_answer 38)
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column-I Column-II A. Drought (p) Slow process B. Surface water (q) Rivers, ponds etc. C. Evaporation (r) Loss of water by plants D. Transpiration (s) Absence of rains for a long time
A)
\[A\to (s);B\to (q);C\to (p);D\to (r)\] done
clear
B)
\[A\to (s);B\to (r);C\to (q);D\to (p)\] done
clear
C)
\[A\to (s);B\to (p);C\to (q);D\to (r)\] done
clear
D)
\[A\to (p);B\to (s);C\to (r);D\to (q)\] done
clear
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question_answer 39)
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns.
Column-I Column-II A. Water cycle (p) Solid state of water B. Hail, snow (q) Condensation C. Water vapour changes to liquid water (r) Circulation of water between ocean and land D. Water enters air (s) Transpiration
A)
\[A\to (p);B\to (q);C\to (r);D\to (s)\] done
clear
B)
\[A\to (q);B\to (r);C\to (s);D\to (p)\] done
clear
C)
\[A\to (r);B\to (p);C\to (q);D\to (s)\] done
clear
D)
\[A\to (s);B\to (q);C\to (p);D\to (r)\] done
clear
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question_answer 40)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 1 Apart from drinking, there are so many activities for which we use water. Most of the water is in oceans and seas. We draw drinking water from taps which is further drawn from a well or a lake etc. We need water for which of the following?
A)
Baking done
clear
B)
Brushing done
clear
C)
Cooking done
clear
D)
All of these done
clear
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question_answer 41)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 1 Apart from drinking, there are so many activities for which we use water. Most of the water is in oceans and seas. We draw drinking water from taps which is further drawn from a well or a lake etc. We need water for
A)
industries done
clear
B)
producing many things done
clear
C)
Both the above done
clear
D)
None of these done
clear
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question_answer 42)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 1 Apart from drinking, there are so many activities for which we use water. Most of the water is in oceans and seas. We draw drinking water from taps which is further drawn from a well or a lake etc. Choose the correct option?
A)
All of us i'. e., Indians) get drinking water from taps. done
clear
B)
The water that we get from taps is also drawn from a lake, or a river or a well. done
clear
C)
Both the above done
clear
D)
None of these done
clear
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question_answer 43)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 2 If we put some water in a plate and allow the plate to lie in open in sunlight we find that the water from the plate disappears. Moreover even if we keep the plate in shade the water still disappears. The process by which the water disappears from the plate is
A)
Evaporation done
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B)
Condensation done
clear
C)
Transpiration done
clear
D)
Precipitation done
clear
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question_answer 44)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 2 If we put some water in a plate and allow the plate to lie in open in sunlight we find that the water from the plate disappears. Moreover even if we keep the plate in shade the water still disappears. The process of disappearance of water from the plate occurs
A)
rapidly in sunlight done
clear
B)
rapidly in shade done
clear
C)
with same speed in day and night done
clear
D)
occurs only in day time done
clear
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question_answer 45)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 2 If we put some water in a plate and allow the plate to lie in open in sunlight we find that the water from the plate disappears. Moreover even if we keep the plate in shade the water still disappears. If we take sea water in plate and allow it to stand in sunlight till whole of the water disappears, we find that
A)
nothing is left in the plate done
clear
B)
some solid is left behind done
clear
C)
some liquid is left behind done
clear
D)
None of the above is correct done
clear
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question_answer 46)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 3 Only a small fraction of water available on the earth is fit for use of plants, animals and humans. The total amount of water on earth remains the same, but the water available for use is very limited and is decreasing with over usage. Why is the demand for water increasing day by day?
A)
The quantity of water used per person is increasing day by day done
clear
B)
The number of persons using water is increasing done
clear
C)
More and more water is being used by industries done
clear
D)
Only (b) and (c) are correct done
clear
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question_answer 47)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 3 Only a small fraction of water available on the earth is fit for use of plants, animals and humans. The total amount of water on earth remains the same, but the water available for use is very limited and is decreasing with over usage. We have a lot of water in oceans, then how is it said that the amount of usable water is limited?
A)
Sea water is not fit for all our uses done
clear
B)
Sea water can not be used directly by us for drinking done
clear
C)
Sea water can not be used directly for plant production done
clear
D)
All of the above done
clear
View Solution play_arrow
question_answer 48)
DIRECTIONS: Read the passage (s) given below and answer the questions that/allow Passage - 3 Only a small fraction of water available on the earth is fit for use of plants, animals and humans. The total amount of water on earth remains the same, but the water available for use is very limited and is decreasing with over usage. How is it that total amount of water on earth remains same though it is consumed by us forvario us activities on a large scale?
A)
Because of water cycle done
clear
B)
Because of transpiration done
clear
C)
Because of condensation done
clear
D)
Because of water harvesting done
clear
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question_answer 49)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): The sea water is saline. Reason (R): The sea water contains many dissolved salts.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer 50)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Role of oceans in supplying usable water is quite important. Reason (R): When the sea water reaches us, in various other forms of sources of water, it is no more saline.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer 51)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Sea water changes to water vapours by the process of transpiration in the presence of sunlight. Reason (R): When sea water changes into water vapour it leaves the dissolved salts behind.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer 52)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): In such areas where there is no vegetation the rain water flows quickly and has no effect on the top layer of soil of that area. Reason (R): When water level rises in rivers, ponds etc. Due to excessive rains it causes floods.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer 53)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): During drought there is a shortage of food and fodder. Reason (R): Droughts result in conservation of water.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
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question_answer 54)
DIRECTIONS: The questions in this segment consists of two statements one labelled as ?Assertion A? and the other labelled as ?Reason R? You are to examine these two statements carefully and decide if the assertion A and reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Level of ground water below the surface of Earth at a given place is known as water table. Reason (R): Excess use of groundwater in cities is resulting in lowering of water table.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
question_answer 55)
Identify the process represented by the part 'A? of the diagram.
A)
Evaporation done
clear
B)
Transpiration done
clear
C)
Condensation done
clear
D)
None of these done
clear
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