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प्रश्न
Write a note about the following.
Evaporation
उत्तर
The heat changes water into vapour. This action is called evaporation. The sun's heat converts the water present on the earth's surface into water vapour. The water that has percolated into the soil also evaporates due to heat. All such vapour enters the atmosphere. This vapour condenses and transforms into rain back to the surface of the earth. Thus, evaporation is necessary for rainfall. The water cycle keeps on functioning due to evaporation.
संबंधित प्रश्न
Make a sketch showing groundwater and water table. Label it.
Answer the following questions in short:
What is water table?
List three major impurities present in river water.
Define:
Sedimentation
Fill in the blank.
Water is a ______ solvent
Tick (√) the correct alternative from the choice given for the following statement:
Water is a
State whether the following statement is true or false. If false, write the correct statement.
Sea water contains salts of calcium and magnesium.
Name the following
A solid, ‘natural form of water.
State whether the following statement is true or false. If false, write the correct statement.
Well water exists below the impervious rocky layers of earth.
Draw a labelled diagram showing the water cycle.
