6th Class Science Water Question Bank

done Water Total Questions - 55

• question_answer1)
  The actual source of tap water, supplied by municipal corporation is
  A)
  river                 done clear
  B)
  lake done clear
  C)
  well      done clear
  D)
  All of these done clear
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• question_answer2)
  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 clear
  B)
  2/3 part done clear
  C)
  1/2 part            done clear
  D)
  1/4 part done clear
  View Solution play_arrow

• question_answer3)
  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 clear
  B)
  certain gases and salts dissolved in water that is supplied as tap water. done clear
  C)
  Both (a) and (b)           done clear
  D)
  None of these done clear
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• question_answer4)
  At some places water coming from the underground contains a lot of dissolved minerals and is called
  A)
  Underground water      done clear
  B)
  Spring done clear
  C)
  Natural water done clear
  D)
           None of these done clear
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• question_answer5)
  Ocean water is highly salt is hand unfit for drinking purposes.
  A)
  Oceans play no role in supply of usable water done clear
  B)
  Role of oceans in supply of usable water is quite important done clear
  C)
  Both the above done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer6)
  Ocean water reaches us
  A)
  by rivers        done clear
  B)
           by ponds done clear
  C)
  by water cycle              done clear
  D)
  All of these done clear
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• question_answer7)
  Water cycle means
  A)
  carrying of water using bicycles done clear
  B)
  carrying of sea water to land by rivers etc. done clear
  C)
  carrying of tap water to our homes done clear
  D)
  circulation of water between ocean and land done clear
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• question_answer8)
  The sea water changes to water vapour
  A)
  by solar energy             done clear
  B)
  by heat of sun done clear
  C)
  Both the above            done clear
  D)
  None of these done clear
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• question_answer9)
  The water vapours, that are formed by evaporation of sea water
  A)
  consist of pure water done clear
  B)
  contains dissolved salts in it done clear
  C)
  Both the above done clear
  D)
  None of these done clear
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• question_answer10)
  Evaporation involves
  A)
  change of solid to vapour done clear
  B)
  change of liquid to vapour done clear
  C)
  change of solid to liquid done clear
  D)
  change of vapour to liquid done clear
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• question_answer11)
  Evaporation of sea water
  A)
  takes place during day time done clear
  B)
  takes place during night time done clear
  C)
  takes place throughout day and night done clear
  D)
  takes place only during noon done clear
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• question_answer12)
  Which of the following processes help in transfer of water to air?
  A)
  Evaporation                 done clear
  B)
  Condensation done clear
  C)
  Transpiration               done clear
  D)
  Both (a) and (c) done clear
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• question_answer13)
  Clouds are formed
  A)
  when water vapours present in air get cooled and change into tiny liquid droplets done clear
  B)
  by the process of evaporation of water vapours done clear
  C)
  by the process of condensation of water vapours done clear
  D)
  Both (a) and (c) are correct done clear
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• question_answer14)
  Floods occur
  A)
  in those areas where it rains excessively done clear
  B)
  in those areas where we have constructed large dams done clear
  C)
  Both the above done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer15)
  If there are no rains at a place for a long time it results in
  A)
  floods               done clear
  B)
  drought done clear
  C)
  either floods or drought done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer16)
  The basic idea behind rain water harvesting is
  A)
  to harvest water           done clear
  B)
  to harvest crops done clear
  C)
  to catch water where it falls done clear
  D)
  All of the above done clear
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• question_answer17)
  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 clear
  B)
  By discharging factory waste in rivers and canals done clear
  C)
  By discharging sewage and waste materials into oceans done clear
  D)
  By reusing the water from washing clothes to wash floor done clear
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• question_answer18)
  Water cycle can be represented as The process that occurs in step 'A' is called
  A)
  Evaporation     done clear
  B)
           Transpiration done clear
  C)
  Condensation              done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer19)
  In water cycle the process that takes place before rains is called
  A)
  Evaporation                 done clear
  B)
  Condensation done clear
  C)
  Precipitation                done clear
  D)
  Melting done clear
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• question_answer20)
  Water vapours enter the air (or atmosphere) by which of the following processes?
  A)
  Evaporation of ocean water done clear
  B)
  Transpiration occurring in plants done clear
  C)
  By evaporation of sweat of animals done clear
  D)
  All of the above done clear
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• question_answer21)
  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 clear
  B)
  B, A, C, D done clear
  C)
  B, C, D, A                    done clear
  D)
  B, D, C, A done clear
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• question_answer22)
  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 clear
  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 clear
  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 clear
  D)
  and (c) are correct done clear
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• question_answer23)
  Select the process that plays an important role in bringing water back to earth.
  A)
  Evaporation                 done clear
  B)
  Condensation done clear
  C)
  Transpiration               done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer24)
  Which of the following is not a form of precipitation?
  A)
  Hailstorm                     done clear
  B)
  Snow done clear
  C)
  Rain                             done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer25)
  Hardness of water is due to presence of
  A)
  salts of calcium            done clear
  B)
  salts of magnesium done clear
  C)
  Both (a) and (b)           done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer26)
  Which natural disaster causes famine?
  A)
  Flood                           done clear
  B)
  Earthquake done clear
  C)
  Drought           done clear
  D)
  All of these done clear
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• question_answer27)
  Aquatic plants take in oxygen from
  A)
  air in the atmosphere done clear
  B)
  dissolved air in water done clear
  C)
  do not need oxygen done clear
  D)
  None of these done clear
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• question_answer28)
  What percentage of water is readily available to us?
  A)
  3%                   done clear
  B)
  97% done clear
  C)
  60%                             done clear
  D)
  40% done clear
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• question_answer29)
  We cannot use seawater because
  A)
  sea water is salty done clear
  B)
  sea water is polluted done clear
  C)
  of high cost done clear
  D)
  sea water cannot be transported done clear
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• question_answer30)
  Water table refers to
  A)
  level of surface water done clear
  B)
  level of sea water done clear
  C)
  level of groundwater done clear
  D)
  None of these done clear
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• question_answer31)
  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 clear
  B)
  Only (i) is true done clear
  C)
  Only (ii) is true done clear
  D)
  None of these done clear
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• question_answer32)
  Purest form of natural water is _____'.
  A)
  seawater          done clear
  B)
  groundwater done clear
  C)
  rainwater         done clear
  D)
  surface water done clear
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• question_answer33)
  Which of the following statement(s) is/are correct?
  A)
  Water is called 'Elixir of Life'. done clear
  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_answer34)
  Clouds are
  A)
  water vapours as such done clear
  B)
  water vapours condensed to tiny droplets of water done clear
  C)
  tiny droplets of water and dust particles done clear
  D)
  All of the above done clear
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• question_answer35)
  Rain water harvesting refers to
  A)
  a method of collecting rain water for our immediate daily use done clear
  B)
  a method of conservation of rains done clear
  C)
  collecting rain water for later use done clear
  D)
  All of the above done clear
  View Solution play_arrow

• question_answer36)
  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_answer37)
  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
  View Solution play_arrow

• question_answer38)
  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
  View Solution play_arrow

• question_answer39)
  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
  View Solution play_arrow

• question_answer40)
  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
  View Solution play_arrow

• question_answer41)
  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
  View Solution play_arrow

• question_answer42)
  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
  View Solution play_arrow

• question_answer43)
  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 clear
  B)
  Condensation done clear
  C)
  Transpiration               done clear
  D)
  Precipitation done clear
  View Solution play_arrow

• question_answer44)
  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_answer45)
  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
  View Solution play_arrow

• question_answer46)
  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
  View Solution play_arrow

• question_answer47)
  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_answer48)
  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
  View Solution play_arrow

• question_answer49)
  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
  View Solution play_arrow

• question_answer50)
  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
  View Solution play_arrow

• question_answer51)
  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
  View Solution play_arrow

• question_answer52)
  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
  View Solution play_arrow

• question_answer53)
  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
  View Solution play_arrow

• question_answer54)
  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_answer55)
  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
  View Solution play_arrow