Class VI

Water freezes at ____ to solid state called snow or ice.
  1. 0°C
  2. 10°C
  3. 25°C
  4. 100°C
The process of falling down of water in the form of rain, snow or hail is called _________.
  1. sublimation
  2. evaporation
  3. condensation
  4. precipitation
Which of the following will lead to reduction in availability of ground water?
  1. plantation
  2. rain water harvesting
  3. constructing more lakes
  4. building concrete roads
When ice water is pored into a glass, tiny water droplets of water appear on the outerside of glass due to _________.
  1. condensation
  2. evaporation
  3. sublimation
  4. transpiration
The circulation of water between ocean and land is known as the _______.
  1. oxygen cycle
  2. water cycle
  3. nitrogen cycle
  4. none of these
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