1.Core,mantle,crust

Question

2.B
3.Evaporation and precipitation
4.B
5.A
6.D
7.C
8.Governments should protect the rights of all citizens
9.A
10.B
11.C
12.A
13.Cultural diffusion
14.C
15.D
16.B
17.C
18.A
19.B
20.Africa