It's an area that is organized around a focal/nodal point where there is a central focus. The central diminishes as you move outwards from the point. Generally used to display information about economic activities.
The correct answer should be Warm and Moist
Such regions can suffer from massive monsoons that can last for months, as well as typhoons, tsunamis, and similar.
A family that extends beyond the immediate family, including grandparents, aunts, uncles, and other relatives