ESS
Grade-7
Easy
Question
What are X, Y, and Z in the given diagram?
- Steam –water ---ice
- Ice ---water---steam
- Steam--ice--water
- Vapor---ice--steam
Hint:
The water becomes vapor on heating and it is reversed to the water by cooling. By further cooling, the water becomes ice.
The correct answer is: Steam –water ---ice
- Water becomes steam on heating by evaporation.
- The steam becomes water on cooling by the process called condensation.
- By further cooling, the water becomes ice.
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