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Where does our freshwater come from?

Answer 1

Freshwaters can be examined in (1) glaciers and permanent snow; (2) groundwater; (3) ground ice (permafrost); (4) lakes; (5) streams (rivers).

The primary water resources that we currently utilize are:

Rivers and streams; (2) groundwater; (3) lakes; (4) storage of precipitation.

Not much, but some nations gain from using seawater that has been converted to freshwater through expensive processes (like reverse osmosis).

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Answer 2

Connor Anderson

Freshwater primarily comes from various sources such as precipitation (rain, snow, sleet), surface water bodies like rivers and lakes, underground aquifers, and glaciers. These sources contribute to the water cycle, where water evaporates from the surface, condenses into clouds, and then precipitates back to the Earth's surface as freshwater. Human activities, such as water extraction from underground reservoirs and desalination of seawater, also contribute to freshwater availability.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.