If a solid sphere and a solid cylinder of the same radius and density rotate about their own axes,which one will have a greater moment of inertia? (Assume $L=R$ for the cylinder)

Which of the following substances would quickly absorb oxygen?

Changes in $GnRH$ pulse frequency in females is controlled by circulating levels of

Convergent evolution is illustrated by

If $\tan \theta + \cot \theta = 2$,then $\sin \theta$ is equal to

Box $A$ contains $2$ black and $3$ red balls, while Box $B$ contains $3$ black and $4$ red balls. Out of these two boxes, one is selected at random; and the probability of choosing Box $A$ is double that of Box $B$. If a red ball is drawn from the selected box, then the probability that it has come from Box $B$ is: