Buttress roots are

What is the most efficient region of water absorption in roots?

Which of the following is a correct statement?

Given below are two statements.
$Statement-I$: In root hair, the outer layer of the cell wall is composed of pectin.
$Statement-II$: In root hair, the inner layer of the cell wall is composed of chitin.
Choose the correct answer from the options given below with reference to the structure of root hair.

An obligate root parasite is:

The lateral roots generally originate in