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Assessment
What percentage of the Earth's surface is covered by water?
71%
50%
30%
90%
What is the primary source of freshwater on Earth?
Rivers
Glaciers and ice caps
Lakes
Atmospheric moisture
Why is water considered a vital resource for human survival?
It is the main ingredient in all foods.
It is essential for hydration and various metabolic processes.
Water can be easily recycled and reused.
It is valuable only in industrial processes.
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