The groundnut fruit is a ..........

What are $S$ and $P$ in the following structures?
$\quad\quad\quad S\quad\quad\quad P$

Which of the following is a geocarpic fruit?

How many layers of pericarp are present in a mango fruit?

Which part of the plant is responsible for the production of opium?

How many plants in the list given below have composite fruits that develop from an inflorescence? Walnut,poppy,radish,fig,pineapple,apple,tomato,mulberry.