5 Questions
Which of the following is NOT a natural source of water mentioned in the text?
Air
What percentage of the Earth's water is fresh water?
2.5%
Which term describes the continuous movement of water above and below the surface of the Earth?
Hydrologic cycle
What happens to water when it is heated by the sun?
It evaporates and rises as invisible vapor in the atmosphere
What is the process by which water vapor is released by plants?
Transpiration
Test your knowledge about water sources and their importance in the Philippines and around the world. Discover the different forms of water, its uses in various activities, and the distribution of fresh water on Earth.
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