Across
1
Chain or group of islands
7
Line dividing two countries
9
Large slow-moving mass of ice
11
Low-lying land surrounded by higher ground
12
Flat elevated area of land
13
Ridge of rock or coral near the surface
14
Flat grassland in tropical regions
Down
2
Raised area of land, smaller than a mountain
3
Deep narrow valley with steep sides
4
Area where water covers the soil
5
Wearing away of land by water or wind
6
Long-term weather patterns of an area
8
Region near the equator
10
Body of water surrounded by land
15
Region between the two tropic lines