Question

1. Which of the following is a drinking water source?

A) Sea water                B) Glaciers             C) Ground water           D) Snow

2. Which of the following causes depletion in the water table of a place?

A) Constructing factories and houses         

B) Making concrete roads and floors

C) Deforestation                              

D) All of the above

3. Water is a

   A) mixture          B) compound      C) element          D) solution

4. What is the percentage of water in the human body?

   A) 80%               B)70%             C) 60%                    D) 50%

5. What is water?

A) A stable atom                  B)A stable element

C) A stable mixture                   D) A stable compound

6. Why does ice float on water?

A)  Ice is heavier than water            B) Ice is cooler than water

C)  Ice is lighter than water          D) Ice is a liquid

 7. Which of the following statements is correct of the water table of a place?

A) It changes from place to place      B) It changes from time to time

C) It goes down when rains are less          D) All of the above

8. Which property of water is used while washing clothes?

A) Odour                  B) Colour            C) Solubility           D) Mass              

9. Which of the following is NOT soluble in water?

A) Salt                      B) Sugar              C) Oxygen            D) Sand

10. What is water in which 2% or more of salts are dissolved in it called?

A)  Distilled water                   B) Pure water  

C) Saline water                     D) Mineral water

 

11. Why is sea water unfit for use in factories though it is available in plenty?

A) It contains bacteria

B) It has foul smell  

C) It is heavier than tap water

D) It has salts which get deposited in the pipelines and boilers.

12. What is the percentage of unutilized water due to lack of proper management?

A)  5%                      B) 8%                 C) 6%                 D) 10%

13. Which of these is due to condensation?

A) Drying of wet clothes

B) Water drops appear on cool water bottle

C) Steam rises from wet clothes when they are ironed

D) Black board dries up after wiping it

14. Water is a chlorinate to

   A) improve is taste          B) kill germs

   C) soften                   D) change colour

15. What is water that is available under the ground called?

A) Water cycle            B) Water body      C) Water table     D) WWTP​

Answer 1

Answer:

1. Glaciers

2.All of the above

3. element

4.70%

5. A stable elements

6. Ice is lighter than water

7. All of the above

8. solubility

9.sand

10. mineral water

11. It has salts which get deposited in pipelines and boilers

12.

13. water drops appear on cool water bottle

14. kill germs

15. water table