Across
1
Largest ocean on Earth
3
Line dividing two countries
6
Chain or group of islands
7
Mountain that can erupt with lava
Down
2
Long-term weather patterns of an area
4
Largest river in South America
5
Distance east or west of prime meridian
8
Vast body of salt water
9
Flat grassland in tropical regions
10
Narrow sea inlet between cliffs