Across
1
Flat grassland in tropical regions
3
Line dividing two countries
6
Goods sold to another country
7
Region near the equator
8
Distance north or south of equator
9
Largest ocean on Earth
Down
2
Low area between mountains
4
Chain or group of islands
5
Ridge of rock or coral near the surface
6
Wearing away of land by water or wind
10
Mountain that can erupt with lava