Which african nation was founded by a movement to return freed slaves to their native land?
a. libya
b. sudan
c. ethiopia
d. liberia

Answer (d) the greenhouse effect is primarily caused by car and trucks;

Ais the answerhope it

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.

The sunlight has affected it beacuse its always so hot so they dont get much rain so a lot of their crops and stuff dry out.living things effect it somewhat bye and not a lot of the animals are goind extiect due to lack of food and water.