1
These occupy 30% of land surface and are surrounded by oceans and seas
2
The crust is divided into these moviing plates
3
the central line of latitude of the planet around which the tropical climatic zone lies
4
The supercontinent that existed 200 million years ago
5
the largest ocean
6
large area of flat land
7
low-lying plain with sediment deposited by a river at its mouth
8
large mass of salt water
9
The intermediate layer of planet Earth
10
the largest continent
11
land surrounded by mountains, which a river may also flow through
12
standing water occupying an inland basin
