Across
1
Low-lying land surrounded by higher ground
3
Ridge of rock or coral near the surface
5
Large area covered with trees
6
Goods brought in from another country
7
Flat elevated area of land
9
Vast body of salt water
10
Long-term weather patterns of an area
11
Physical features of land
Down
2
Chain or group of islands
4
Largest ocean on Earth
8
Large slow-moving mass of ice