Across
1
Region surrounding the North Pole
4
Flat grassland in tropical regions
6
Ridge of rock or coral near the surface
8
Line dividing two countries
9
Long-term weather patterns of an area
12
Seasonal heavy rainfall
Down
2
Where river meets the sea
3
Vast body of salt water
5
Large natural stream of water
7
Low-lying land surrounded by higher ground
10
Region near the equator
11
Goods brought in from another country