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Olympiad Test: Water A Precious Resource - CTET & State TET MCQ


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20 Questions MCQ Test NCERT Textbooks (Class 6 to Class 12) - Olympiad Test: Water A Precious Resource

Olympiad Test: Water A Precious Resource for CTET & State TET 2024 is part of NCERT Textbooks (Class 6 to Class 12) preparation. The Olympiad Test: Water A Precious Resource questions and answers have been prepared according to the CTET & State TET exam syllabus.The Olympiad Test: Water A Precious Resource MCQs are made for CTET & State TET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Water A Precious Resource below.
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Olympiad Test: Water A Precious Resource - Question 1

Total water is maintained by

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 1

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

Olympiad Test: Water A Precious Resource - Question 2

In gaseous form water is present in atmosphere as

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 2

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

Olympiad Test: Water A Precious Resource - Question 3

Earth appear blue from sky due to presence of

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 3

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

Amount of water recommended by United Nation per person per day is

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 4

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

The process of changing water vapour into water is called

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 5

The process of changing water vapour into water is called condensation

Olympiad Test: Water A Precious Resource - Question 6

Plants loose water in form of

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 6

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

Which one is not a natural source of water

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 7

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

Loss of water by plants is called

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 8

Loss of water in form of water vapour by plants is called as transpiration.

Olympiad Test: Water A Precious Resource - Question 9

The purest form of water is

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 9

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

In water works, first step is

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 10

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

In which season water scarcity is most acute?

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 11

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

Plants absorbs water from

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 12

Plants absorbs water from water present between the soil particles through root hairs.

Olympiad Test: Water A Precious Resource - Question 13

An example of underground water is

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 13

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

River Yamuna is polluted near Delhi due to

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 14

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

Which source of water is mostly used by construction site of building?

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 15

At construction site of building, ground water is used mostly by extracting water using tube-well.

Olympiad Test: Water A Precious Resource - Question 16

Water is natural resource which is

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 16

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

Addition of harmful substance in water leads to

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 17

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

Of the total amount of water present on the earth, the water available for human use is about

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 18

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

People living near sea or ocean also feels lacks of water because

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 19

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

About 70% of our body consists of

Detailed Solution for Olympiad Test: Water A Precious Resource - Question 20

About 70% of our body consists of water in blood and cytoplasm of cells.

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