Questions

The first Indian woman President of Indian National Congress was Sarojini Naidu in the year 1925.

First woman to become the president of INC - Annie Besant 1917.

The study of flags is called Vexillology and the art of flag design is called as Vexillography. The man who studies flags is called as Vexillologist.

In the given options, a high-fat diet is the only factor that contributes to hypertension.

Refractive Index of glass with respect to water can be calculated by 

(Refractive Index of glass with respect to air) × (1/Refractive Index of water with respect to air)

We know that,

Refractive Index of glass with respect to air = 4/3

Refractive index of water with respect to air = 3/2

Hence, Refractive Index of glass with respect to water = (4/3) x (2/3) = 8/9.

The potable water is the water, which is tested and safe for drinking purpose and cooking preparations. The water is tested and purified in industries. So, the potable water is costly.

Hence, Access to potable water is most heavily limited by money.

Spongy, porous bone tissue is also called cancellous bone.

Cancellous bone is found in bones that aren't generally under significant stress like in the shoulder blades, ribs, parts of the skull, and at the ends of long bones.

Chemically marble is known as Calcareous rock as it is composed of carbonate minerals like calcite or dolomite.