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Class 7 Exam  >  Class 7 Tests  >  Olympiad Test: Water A Precious Resource - Class 7 MCQ

Olympiad Test: Water A Precious Resource - Class 7 MCQ


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20 Questions MCQ Test - Olympiad Test: Water A Precious Resource

Olympiad Test: Water A Precious Resource for Class 7 2024 is part of Class 7 preparation. The Olympiad Test: Water A Precious Resource questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Water A Precious Resource MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Water A Precious Resource below.
Solutions of Olympiad Test: Water A Precious Resource questions in English are available as part of our course for Class 7 & Olympiad Test: Water A Precious Resource solutions in Hindi for Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Olympiad Test: Water A Precious Resource | 20 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study for Class 7 Exam | Download free PDF with solutions
Olympiad Test: Water A Precious Resource - Question 1
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Total water is maintained by

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Total water is maintained by water cycle during which evaporation and condensation of water takes place.

Olympiad Test: Water A Precious Resource - Question 2
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In gaseous form water is present in atmosphere as

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In atmosphere, water is present in form of water vapour along with other gases of atmosphere.

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Olympiad Test: Water A Precious Resource - Question 3
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Earth appear blue from sky due to presence of

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Earth appear blue from sky due to presence of large surface covered with water. About 2/3 of earth surface is covered with water.

Olympiad Test: Water A Precious Resource - Question 4
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Amount of water recommended by United Nation per person per day is
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The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene is a minimum of 50 litres per person per day.

Olympiad Test: Water A Precious Resource - Question 5
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The process of changing water vapour into water is called
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The process of changing water vapour into water is called condensation

Olympiad Test: Water A Precious Resource - Question 6
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Plants loose water in form of
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Loss of water in form of water vapour from aerial parts of plant is called as transpiration. It mainly occurs through stomata.

Olympiad Test: Water A Precious Resource - Question 7
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Which one is not a natural source of water
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Ponds, rivers and lake are natural source of water but canal is a man-made source of water.

Olympiad Test: Water A Precious Resource - Question 8
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Loss of water by plants is called
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Loss of water in form of water vapour by plants is called as transpiration.

Olympiad Test: Water A Precious Resource - Question 9
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The purest form of water is
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Rain water is purest form of water as it is free from all kinds of salts and other impurities.

Olympiad Test: Water A Precious Resource - Question 10
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In water works, first step is
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The process involve in purifying the water to make it suitable for drinking is called water work. The first step of water work is sedimentation.

Olympiad Test: Water A Precious Resource - Question 11
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In which season water scarcity is most acute?
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In summer season, the scarcity of water is acute as most of the sources of water get dried during this period.

Olympiad Test: Water A Precious Resource - Question 12
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Plants absorbs water from
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Plants absorbs water from water present between the soil particles through root hairs.

Olympiad Test: Water A Precious Resource - Question 13
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An example of underground water is
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River, lake and sea are sources of surface water but well is an example of underground water.

Olympiad Test: Water A Precious Resource - Question 14
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River Yamuna is polluted near Delhi due to
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River Yamuna is polluted near Delhi due to addition of untreated sewage into river water from all over Delhi.

Olympiad Test: Water A Precious Resource - Question 15
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Which source of water is mostly used by construction site of building?
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At construction site of building, ground water is used mostly by extracting water using tube-well.

Olympiad Test: Water A Precious Resource - Question 16
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Water is natural resource which is
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Water is natural resource, which is inexhaustible but due to human interference in natural replenishment it becomes polluted.

Olympiad Test: Water A Precious Resource - Question 17
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Addition of harmful substance in water leads to
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Addition of harmful substance in water leads to water pollution, which may be untreated sewage, industrial effluents etc.

Olympiad Test: Water A Precious Resource - Question 18
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Of the total amount of water present on the earth, the water available for human use is about
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Of the total amount of water present on the earth, the water available for human use is about 1%. Most of the water is present in ocean and sea, which are hard water and remaining soft water are on poles in form of ice.

Olympiad Test: Water A Precious Resource - Question 19
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People living near sea or ocean also feels lacks of water because
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People living near sea or ocean also feel lacks of water because sea water is salty and cannot be used by human beings.

Olympiad Test: Water A Precious Resource - Question 20
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About 70% of our body consists of
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About 70% of our body consists of water in blood and cytoplasm of cells.

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