Our diet includes all necessary nutrients still we need to digest it why it is so?

During summer, we tend to produce less urine, why is it so?

Chapattis made from wheat only swell up but bread becomes spongy, soft and easy to digest. Why is it so?

Use your brain power Chapatis made from wheat only swell up but bread becomes spongy, soft and easy to digest. Why is it so?

Why do we need filters in a power supply?

Why do we need filters in a power supply?

Answer the given question in one sentence : During digestion, does all the food that we have eaten get converted into useful, nutritive substances?

While driving along an unbanked circular road, a two- wheeler ride has to lean with the vertical. Why is it so? With what angle the rider has to lean? Derive the relevant expression . Why such a leaning is not necessary for a four wheeler?

An external pressure P is applied on a cube at 0^@C so that it is equally compressed from all sides. K is the bulk modulus of the material of the cube and alpha is its coefficient of linear expansion. Suppose we want to bring the cube to its original size by heating. The temperature should be raised by: