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Questions and Answers
What percentage of Earth's surface is covered in water?
What percentage of Earth's surface is covered in water?
What is the process by which water moves through a plant, from the roots to the leaves, and is then released into the air as water vapour?
What is the process by which water moves through a plant, from the roots to the leaves, and is then released into the air as water vapour?
What is the primary source of freshwater on Earth?
What is the primary source of freshwater on Earth?
What is the term for the continuous process by which water is circulated between the Earth and the atmosphere?
What is the term for the continuous process by which water is circulated between the Earth and the atmosphere?
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What percentage of the world's water is freshwater?
What percentage of the world's water is freshwater?
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Study Notes
Water Facts
- Approximately 71% of Earth's surface is covered in water.
- The process by which water moves through a plant, from the roots to the leaves, and is then released into the air as water vapour is called transpiration.
- The primary source of freshwater on Earth is underground aquifers, which store about 30% of the planet's freshwater.
- The term for the continuous process by which water is circulated between the Earth and the atmosphere is the water cycle or hydrologic cycle.
- Only about 2.5% of the world's water is freshwater, and the majority of it is frozen in glaciers and polar ice caps.
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Description
Test your knowledge on water-related topics, including the water coverage on Earth's surface, water cycle, and freshwater sources.
