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Question-1
Most of the water that exists on the earth is in the seas and
(A)
Seas
(B)
River
(C)
Lakes
(D)
Oceans
Question-2
Rain and dew are formed of
(A)
Water droplets
(B)
Water vapour
(C)
Lakes
(D)
River
Question-3
The solid form of water is
(A)
Fog
(B)
Ice
(C)
Water vapour
(D)
Water droplets
Question-4
Flooding in city streets can be by rainwater harvesting
(A)
Increased
(B)
Decrease
(C)
Reduced
(D)
Recharging
Question-5
The most common desalination processes are
(A)
Desalination
(B)
Water droplets
(C)
Distillation and Reverse osmosis
(D)
Sea water
Question-6
Underground water is also called an
(A)
Aquifer
(B)
Water table
(C)
Salination
(D)
Sea water
Question-7
World Environment day is celebrated on
(A)
2
nd
Feb
(B)
5
th
June
(C)
17
th
Feb
(D)
27
th
Sep
Question-8
Ocean water is highly ____________ and hence unfit for drinking.
(A)
Sour
(B)
Salty
(C)
Sugar
(D)
Both (a) and (c)
Question-9
Chennai Metropolitan water supply and Sewage Board is referred as
(A)
CMWSSB
(B)
NCERT
(C)
Minjur desalination plant
(D)
None
Question-10
Most of the fresh water returns to the oceans through
(A)
Rivers
(B)
Rains
(C)
Well
(D)
Aquifer
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Std 7
Tamil Nadu (English Medium)
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