Across
1
Distance east or west of prime meridian
5
Largest ocean on Earth
6
Cold treeless Arctic plain
8
Physical features of land
10
Narrow sea inlet between cliffs
Down
2
Largest river in South America
3
Region near the equator
4
Where river meets the sea
5
Flat elevated area of land
7
One of seven major landmasses
9
Imaginary line around the middle of Earth