Water Worksheet-2

Water Worksheet-2

Multiple-Choice Question:

11. Dissolution of salt in water is a:

(A) Physical process                       

(B) Chemical process

(C) None of these

12. Ice floats on water because:

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

(C) Ice is lighter than water            (D) Ice is a solid

13. In summer, fish die in shallow ponds because:

(A) Solubility of air in water increases with the increase in temperature

(B) Solubility of air in water decreases with the increase in temperature

(C) Excess of carbon dioxide dissolves in water with the rise in temperature

(D) None of these

14. The water table of a place:

(A) Changes from time to time        

(B) Changes from place to place

(C) Goes down when rains are less

(D) All of these

15. Which of the following is not soluble in water?

(A) Salt                                             (B) Sugar

(C) Oxygen                                       (D) Oil

16. Water can be decomposed by:

(A) Heating upto 500°C                  (B) Heating upto 500° C

(C) Cooling upto 0°C                       (D) Any of these

17. Which of the following term is not related to underground water?

(A) Infiltration                                  (B) Aquifer

(C) Water table                                 (D) Potable water

18. Anode is a ________ terminal of battery.

(A) Positive          (B) Negative        (C) Neutral

19. Which of the following is not an example of underground water?

(A) Seawater       (B) Spring water  (C) Well water

20. The water pollutants from industrial operations are:

(A) Amoeba         (B) Carbon           (C) Mercury         (D) Iron

Answer Key:

11. (A)
12. (C)
13. (B)
14. (D)
15. (D)
16. (B)
17. (D)
18. (A)
19. (A)
20. (C)