The White Revolution is associated with which industry?

Which of the following is a fiber-yielding plant?

Two uniform rods of equal length but different masses are rigidly joined to form an $L$-shaped body,which is then pivoted as shown. If in equilibrium the body is in the shown configuration,the ratio $M/m$ will be:

The angle between the straight lines represented by $(x^2+y^2) \sin^2 \alpha = (x \cos \alpha - y \sin \alpha)^2$ is

The phenomenon of 'industrial melanism' demonstrates:

In dicot stem,vascular bundles are