WORKSHEET 2 of CHAPTER16 : WATER : A PRECIOUS RESOURCE

Question 1: 

Which of the following does not show water shortage?     (1)

(a) Taps running dry
(b) Long queues for getting water
(c) Marches and protests for demand of water
(d) A family gets three buckets of water per person per day

Question 2:
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.        (1)

(a) 006%

(b) 0.06%
(c) 0.6%
(d) 6%

Question 3:
Which of the following are not the liquid forms of water?        (1)
(i) Snow
(ii) Lake water
(iii) River water
(iv) Water vapour
(v) Ice
Choose the correct combination from the options below
(a) (i), (iv) and (v)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (iv) only

Question 4:
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        (1)
(a) water level
(b) water table
(c) groundwater
(d) water limit

Question 5:
Which of the following is a way to use water economically?        (1)
(a) Construction of bawris
(b) Rainwater harvesting
(c) Drip irrigation
(d)  Infiltration

Question 6:
On which of the following day is World Water Day observed?        (1)
(a) 22 March
(b) 14 November
(c) 2 October
(d) 21 December

Question 7:
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        (1)
(a) 5 L
(b) 15 L
(c) 30 L
(d) 50 L

Question 8:
‘Every Drop Counts’ is a slogan related to        (1)
(a) counting of drops of any liquid
(b) counting of water drops
(c) importance of water
(d) importance of counting

Question 9:
Water cycle does not involve which of the following?        (1)
(a) Evaporation
(b) Condensation
(c) Formation of clouds
(d) Rainwater harvesting

Question 10:
Which of the following inhibits the seepage of rainwater into ground?        (1)
(a) A pukka floor
(b) Playground
(c) Grass lawn
(d) Forest land\

Question 11:
State whether True/False.        (4)
(a) Water vapour is the gaseous form of water.
(b) Ice is solid, whereas snow is the semi-solid form of water.
(c) Ocean water cannot be used for domestic purposes.
(d) Rapid growth of industries is one of the cause for water shortage

Question 12:
Some definitions are given which can be corrected by changing one word. Correct them.        (3)
(a) Aquifer is groundwater stored between layers of hard rock above the water table.
(b) The process of evaporation of water in the ground is called infiltration.
(c) The evaporation of water from oceans and its arrival back into oceans is called vapour cycle.

Question 13:
What is the source of water in each of the following?        (3)
(a) Wells
(b) Ground
(c) Atmosphere

Question 14:
State whether True/False.        (4)
(a) The process of seeping of water into ground is called filtration.
(b) 51% of the earth’s surface is covered with water.
(c) Year 2003 was observed as the International year of freshwater.
(d) Snow and ice both are solid form of water.

Question 15:
The rainwater and … from other sources such as rivers and ponds seep through the … and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called … .        (3)

Question 16:
Complete the given table            (6)

Question 17:
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).        (5)