Across
1
Region between the two tropic lines
5
Body of water surrounded by land
7
Seasonal heavy rainfall
8
Cold treeless Arctic plain
9
Where river meets the sea
10
Mountain that can erupt with lava
11
Flat elevated area of land
Down
2
Imaginary line around the middle of Earth
3
Large natural stream of water
4
Chain or group of islands
6
Flat grassland in tropical regions