Question

why we should drink 6 to 8 glasses of water everyday do water does not provide any energy *give reasons*

Answer 1

Because our body made up 70-80% of water. If we don't drink sufficient water our body becomes shrink and our skin became dryer. Then few days after loss of water we get died.

Answer 2

We should drink 6-8 glasses of water daily because we can stay hydrated by drinking water and other fluids like juices etc. or eat fruits which are rich in roughage when they felt thirst .
And in summer we have to drink a lot of water because in summer dehydration is common .

Water having no calories , don't provide us energy .
But in some conditions like keeping our bodies hydrated and helps in regulating the body temperature , water enables to derive the energy from ingested nutrients .
BE BRAINLY