Question

How much of the Earth’s water is usable as a freshwater resource?

Answer 1

the usability of multiple natural resources may be reduced.

Step-by-step explanation:

study island

Answer 2

Earth contains about 91.9% of water but only 71% is usable as a freshwater resource. The 91.9% includes the water in the atmosphere that you can't see, like water in clouds, water as complete gas form, and water as ice.
Hope this helps. Let me know if you need more information. I'd be happy to help in any way possible. :)