Question

can all the water on earth be used by people? why?

Answer 1

$\huge \text{Hey mate}$

No, we can't use all the water on earth. This is because the water present in oceans ans seas contain heavy amount of salt due to which are not able to use it and it is not useful for us. 97% of water on earth is present in oceans and seas. So, it mean we can only use 3% of water from our earth not all the water.

Hope it will help you ^_^

Answer 2

No, we don't use all the water present on earth