The major product $A$ is:

If $f(x) = \begin{cases} x \sin \frac{1}{x}, & x \ne 0 \\ k, & x = 0 \end{cases}$ is continuous at $x = 0$,then the value of $k$ is

In plants,which elements are most readily mobilized?

Which pair of oxides is acidic in nature?

Plants follow ...$A$... pathways in response to environment or phases of life to form different kinds of structures. This ability is called ...$B$.... Complete the given statement with the correct combination of options.

If a number is chosen at random from the four-digit numbers formed by using the digits $0, 1, 2, 3, 4, 6$ without repetition,then the probability that it is divisible by $4$ is: