Vernalization stimulates flowering in

$A$ hypothetical chemical involved in the flowering of plants is:

Which of the following processes is called springization or springification?

On germination,a seed first produces shoots with leaves,and flowers appear later.
$(A)$ Why do you think this happens?
$(B)$ How is this advantageous to the plant?

Which of the following is an example of a short-day plant?

If a tree flowers thrice in a year $(October, January, \text{and } July)$ in Northern India, it is said to be