Across
1
Region between the two tropic lines
5
Landform where river meets the sea
6
Large natural stream of water
7
Imaginary line around the middle of Earth
9
Wearing away of land by water or wind
10
Largest river in South America
Down
2
Ridge of rock or coral near the surface
3
Goods sold to another country
4
Flat grassland in tropical regions
8
Line dividing two countries
11
Region near the equator
12
Long-term weather patterns of an area