Water and Its Importance

Water and its importance Worksheet-4

Multiple -Choice Question:

31. How does vapour from the clouds become rain?

(a) through condensation               (b) through precipitation

(c) through pumps in the air (d) by flowing in underground filters

32. What percentage of human body cell is composed of water?

(a) 75-90%          (b) 30-60%          (c) 5%                  (d) 80%

Water and its importance Worksheet-5

Multiple -Choice Question:

41. Moisture that falls to the ground in the form of sleet, rain or snow, ice is called.

(a) Vapours                                      (b) Evaporation

(c) Condensation                             (d) Precipitation

42. What are the three critical processes that are part of the water cycle?

(a) Evaporation, transpiration, and respiration

Water and its importance Worksheet-6

Multiple -Choice Question:

51. Which metal, used in leather tanning, causes ground and surface water pollution on entering nearby water bodies?

(a) Chromium     (b) Aluminium    (c) Iron                 (d) Lead

52. What is the study and collection of shells known as?

(a) Ornithology                                (b) Paleontology

(c) Conchology                                (d) Archaeology