Read the following excerpt about water availability to living organisms. “Water covers 75 percent of Earth. 97 percent of water on Earth is salt water. Only 3 percent of water is available as fresh water, but most of this water is locked up in solid glaciers and polar ice caps.” Based on this information, which is the best approximation of the amount of water on the planet that is available for animals to drink
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.o3% of water is available as fresh water for drink.
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Water is vital for human biology because it fulfills five vital functions:
Cell life: water carries nutrients to, from, and within cells. Hence it is very effective.
Chemical reactions: water is a solvent and needed for the body to operate.
Temperature regulation: sweat is mostly water because it has a high heat capacity.
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