Fijate en las descripciones de los biotopos de los biomas que presentan sequia y explica que presentan sequia y explica que factores ambientales la provocan

No, because you are more likely to see volcanic mountains where magma is rising along the mid-ocean ridge spreading to the center.

The answers are/ (b) climate refers to long term atmospheric,conditions weather refers to short term.

The highest point of a hill (or mountain) is a single point.
a single point can only be precisely marked with a dot. 
putting on a contour line is impossible  on a single point because the contour line is created after multiple points that have the same hight are marked, and after that, all of those points are connected with a line that creates a closed area. so the highest point, as said above, is a single point, there are no other points with the same height, so the only possible way for it to be marked is with a dot, and there is no possibility for a contour line.