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Question-1
Water is called the universal solvent because:
(A)
it dissolves in most of the liquids
(B)
it can dissolve most of the substances
(C)
it contains many salts and minerals
(D)
it can exist in three states
Question-2
Plants release large amount of water vapour into the atmosphere by the process is called
(A)
evaporation
(B)
condensation
(C)
precipitation
(D)
transpiration
Question-3
Circulation of water between ocean and land is known as
(A)
water cycle
(B)
rain cycle
(C)
water management
(D)
water harvesting
Question-4
Out of these which one is not a source of surface water?
(A)
Rainwater
(B)
River and lake water
(C)
Spring water
(D)
Sea water
Question-5
Potable water is
(A)
ocean water
(B)
ground water at selected places
(C)
river water
(D)
ponds water
Question-6
The pH value of water is :
(A)
9
(B)
3
(C)
7
(D)
4
Question-7
Which of following statements is true ?
(A)
The salinity of rivers increase with time
(B)
The salinity of rivers decrease with time
(C)
The salinity of seas increase with time
(D)
The salinity of seas decrease with time
Question-8
Which is a result of condensation of water vapours?
(A)
Rain
(B)
Snowfall
(C)
Hail
(D)
Tiny water droplets
Question-9
Which one is the purest form of water?
(A)
River water
(B)
Ground water
(C)
Rain water
(D)
Ocean water
Question-10
Boiling point of water is
(A)
100
o
C
(B)
99
o
C
(C)
101
o
C
(D)
102
o
C
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Std 6
CBSE
Practice in Related Chapters
Health and Hygiene
Food: Where Does It Come From?
Components of Food
Fibre to Fabric
Body Movements
Getting to Know Plants
Living Organisms and their Surroundings
Light, Shadow and Reflection
Electricity and Circuit
Fun with Magnets
Changes Around Us
Sorting Materials into Groups
Separatlon of Substances
Garbage In, Garbage Out
Water
Air Around Us
Motion and Measurement of Distance
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