CBSE Questions for Class 6 Chemistry Water Quiz 4 - MCQExams.com

Which of the following techniques are used for rainwater harvesting?
  • Rooftop rainwater harvesting
  • Water is allowed to go into the ground directly from the roadside drains that collect rainwater.
  • Both of the above
  • None of the above
The ultimate source of water on the earth is 
  • oceans and seas
  • spring and wells
  • rivers and lakes
  • rain
State true or false.
We must store drinking water in covered containers.
  • True
  • False
Largest amount of fresh water is found in:
  • Lakes and streams
  • Underground
  • Polar ice and glaciers
  • Rivers
Clouds are:
  • Tiny drops of water floating in the air
  • Mixture of dust and water vapour
  • Particles of water vapour
  • Raindrops in the air
Transpiration is a process in which plants _______________.
  • receive water from the soil
  • absorb water vapour from the air
  • prepare food from the water
  • release water vapour
Rainfall patterns depend on:
  • The underground water table
  • The number of water bodies in an area
  • The density pattern of human population in an area
  • The prevailing season in an area
Water evaporates into air from oceans, rivers and lakes but not from the soil.
  • True
  • False
Which of the following will lead to reduction in availability of ground water?
  • Plantation
  • Rain water harvesting
  • Constructing more lakes
  • Building concrete roads
The process falling water in the form of rain, snow or hail is called:
  • Sublimation
  • Evaporation
  • Condensation
  • Precipitation
Water vapour condenses to form tiny droplets of water in the upper layer of air where it is cooler.
  • True
  • False
The evaporation of water takes place only in sunlight 
  • True
  • False
The water fit for drinking is called
  • Portable water
  • Portrayable water
  • Potable water
  • None of these.
The circulation of water between ocean and land is known as the:
  • Oxygen cycle
  • Water cycle
  • Nitrogen cycle
  • None of these
The water is supplied through a network of pipes. Are these types of water supply systems present in all parts of the country?
  • Yes
  • No
  • Both (A) and (B)
  • None of the Above
 Liquid water is present in oceans, lakes, rivers, and even underground.
  • True
  • False
The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene is a minimum of  __________ per person per day.
  • 200 litres
  • 150 litres
  • 100 millilitres
  • 50 litres
What is the water cycle?
  • The process of water passing out from the surface of leaves of a plant.
  • Water falling from clouds in the form of rain, freezing rain, sleet, snow, or hail.
  • Movement of water from the atmosphere to the earth and then back to atmosphere.
  • None of the above
Which of the following is the purest form of natural water?
  • River water
  • Filtered water
  • Rain water
  • Mineral water
Observe the above water cycle. The water cycle differs from other cycles in that it occurs primarily due to physical processes, not chemical processes. Observe the figure and the following statements and put the events in the correct sequence.
A. Precipitation exceeds evaporation and transpiration over land, runoff, and groundwater balance the net flow of water vapor to land.
B. Solar energy results in evaporation from the oceans
C. Over the oceans, evaporation exceeds precipitation, the excess water vapor is moved onto land by winds. 
D. Water vapor rises, cools, and falls as precipitation.

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  • $$A > B > C > D$$
  • $$B > D > A > C$$
  • $$C > D > A > B$$
  • $$D > B > A > C$$
0:0:1


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