Across
1
Deep narrow valley with steep sides
4
Mountain that can erupt with lava
5
Distance north or south of equator
7
Goods brought in from another country
10
Chain or group of islands
11
Cold treeless Arctic plain
13
Large natural stream of water
Down
2
Flat elevated area of land
3
One of seven major landmasses
6
Flat grassland in tropical regions
8
Ocean between Americas and Europe/Africa
9
Where river meets the sea
12
Line dividing two countries