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Important Questions Test: Water A Precious Resource


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20 Questions MCQ Test Science Class 7 | Important Questions Test: Water A Precious Resource

Important Questions Test: Water A Precious Resource for Class 7 2022 is part of Science Class 7 preparation. The Important Questions Test: Water A Precious Resource questions and answers have been prepared according to the Class 7 exam syllabus.The Important Questions Test: Water A Precious Resource MCQs are made for Class 7 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions Test: Water A Precious Resource below.
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Important Questions Test: Water A Precious Resource - Question 1

Tubewells and Springs are the examples of 

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

A tube well is a type of water well in which a long, 100–200 millimetres (3.9–7.9 in)-wide, stainless steel tube or pipe is bored into an underground aquifer. The required depth of the well depends on the depth of the water table. Tubewell is largely used in desert areas where the ground water level is very deep.
Springs are indicated by locations or points on the ground surface, where water from beneath the ground emerges on to the surface. A common example is of an overflowing unconfined aquifer. Springs can be perennial or seasonal. Discharge from a spring may vary between from a trickle to about 100 cum per second.
 

Important Questions Test: Water A Precious Resource - Question 2

Which of the following will not help in conservation of water?

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

Cutting trees to check water loss due to transpiration is not help in conservation of water. For conversation of water we use drip irrigation, planting more trees, water treatment plant and many more methods.

Important Questions Test: Water A Precious Resource - Question 3

Ground water accumulates between layers of hard rock. It is known as

Important Questions Test: Water A Precious Resource - Question 4

Which of the following is the reason for depletion of water table?

Important Questions Test: Water A Precious Resource - Question 5

Which of the following is traditional way to conserve water?

Important Questions Test: Water A Precious Resource - Question 6

How much the earth’s surface is covered with water

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

71% of the Earth's surface is covered with water.

Important Questions Test: Water A Precious Resource - Question 7

The process of seeping of water into the ground is called _________

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

The rainwater and water from other sources such as rivers and ponds seeps through the soil and fills the empty spaces and cracks deep below the groundThe process of seeping of water into the ground is called infiltration. The groundwater thus gets recharged by this process.

Important Questions Test: Water A Precious Resource - Question 8

Which one of the following is not responsible for water shortage?

Important Questions Test: Water A Precious Resource - Question 9

Q9: The region covered by water is called ___________

Important Questions Test: Water A Precious Resource - Question 10

Q10: Steam is which form of water?​

Important Questions Test: Water A Precious Resource - Question 11

Which of the following does not show water shortage?

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

(d) According to the recommendation of United Nations (UN) minimum 50 litres of water per person per day should be provided. Hence, three buckets (nearly 60 litres) of water is sufficient for a person for one day.

Important Questions Test: Water A Precious Resource - Question 12

Seas and oceans are full of water on earth. However a very small percentage of water present on earth is available for us. This percentage is roughly.

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

Some 72 percent of Earth is covered in water, but 97 percent of that is salty ocean water and not suitable for drinking.The rest are in the form of lakes ,etc.So the percentage remaining available for us is 0.006 %

Important Questions Test: Water A Precious Resource - Question 13

Which of the following are not the liquid forms of water?

(i) Snow (ii) Lake water (iii) River water (iv) Water vapour (v) Ice Choose the correct combination from the options below

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

Snow and ice are frozen while water vapour is in gaseous state. Water from lake and river are in liquid state.

Important Questions Test: Water A Precious Resource - Question 14

A man digging the ground near a waterbody found that the soil was moist. As he kept digging deeper and deeper he reached a level, where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called

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

The upper limit of the layer where water is present between particles of soil and gaps between rocks is called water table and water below this layer is called groundwater.

Important Questions Test: Water A Precious Resource - Question 15

Which of the following is a way to use water economically?

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

Among the given options, drip irrigation is a way to use water economically because the installation of drip irrigation techniques require less amount of water.

Important Questions Test: Water A Precious Resource - Question 16

On which of the following day is World Water Day observed?

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

22 March is celebrated as the World Water Day.

Important Questions Test: Water A Precious Resource - Question 17

The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of

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

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.

Important Questions Test: Water A Precious Resource - Question 18

‘Every Drop Counts’ is a slogan related to

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

Every drop of water is precious for life to sustain on earth.

Important Questions Test: Water A Precious Resource - Question 19

Water cycle does not involve which of the following?

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

Water cycle does not involve rainwater harvesting. Rainwater harvesting involves recharging the groundwater.

Important Questions Test: Water A Precious Resource - Question 20

Which of the following inhibits the seepage of rainwater into ground?

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

 A pukka or cemented floor is usually impervious to water, inhibiting the seepage of rainwater into grounds.

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