Which chemical must be applied to the roots to keep the leaves of a plant green?

The inverse of the proposition $(p \wedge \sim q) \Rightarrow r$ is

In $Bryophytes$,the adult plant body is:

If $A = \begin{bmatrix} -8 & 5 \\ 2 & 4 \end{bmatrix}$ satisfies the equation $x^2 + 4x - p = 0$,then $p$ is equal to

$G-6-P$ dehydrogenase deficiency is associated with haemolysis of:

The time period of a particle in simple harmonic motion is $8 \ s$. At $t=0$,it is at the mean position. The ratio of the distances travelled by it in the first and second seconds is