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Select the correct answer from each drop-down menu to complete the sentences about water sources on Earth.

Nearly 97% of the water on Earth is unusable by humans because of its ___________.
This lack of usability is due to the fact that water ___________.


Sagot :

Final answer:

Almost all Earth's water is salty and unusable for humans, with the majority stored in oceans. Freshwater is scarce as it is mostly frozen in ice sheets and glaciers.


Explanation:

Nearly 97% of the water on Earth is unusable by humans because of its high salinity. This vast portion of water is primarily found in the oceans, making it unsuitable for human consumption without desalination processes. The remaining freshwater is mostly locked in ice sheets and glaciers, limiting its immediate accessibility for human use.


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