Which description best characterizes the city of timbuktu?.

Answerhave flowing water either episodically or during only a portion of the year;

1. d: oceanic crust is thicker and contains a lot of granite2.d: where two continental plates are colliding  3.b.contour boundaries4.b.plates that are attracted to each other by gravity5.a.as two continental plates collide along a convergent boundary, mountains are formed.

Ithink this answer here is a or d