Ovulation is induced under the influence of which hormone?

Who is the scientist known for classifying the plant kingdom into two main groups?

According to the carbinol system,tert-butyl alcohol is named as:

The number of hydroxide ions produced by one molecule of sodium carbonate $(Na_2CO_3)$ on hydrolysis is

Two spheres $A$ and $B$ are kept very near to each other. $A$ is negatively charged and $B$ is earthed. The true statements are:
$(A)$ Charge on $B$ is zero
$(B)$ Potential at $B$ is zero
$(C)$ Charge is uniformly distributed on $A$
$(D)$ Charge is non-uniformly distributed on $A$

The negation of $\sim s \vee (\sim r \wedge s)$ is equivalent to