Question

How do the kidneys maintain water balance in the body?

Answer 1

The kidneys maintain our body's water balance by controlling the waterconcentration of blood plasma. Thekidneys also control salt levels and the excretion of urea. Water that is not put back into the blood is excreted in our urine.

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Answer 2

The kidneys maintain water balance in the body by controlling the water concentration of blood plasma.
The kidneys are also useful in controlling the salt level and the excretion of urea.
It is useful in the purification of blood. It retains the useful substances in the body, and the water which doesn't gets utilized is excreted out though urine.

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