Across
1
Where river meets the sea
5
Large natural stream of water
6
Largest ocean on Earth
7
Land surrounded by water
8
Height above sea level
Down
2
Goods brought in from another country
3
Ridge of rock or coral near the surface
4
Half of the Earth
9
Cold treeless Arctic plain
10
Mountain that can erupt with lava
11
Long-term weather patterns of an area