Across
1
Mountain that can erupt with lava
4
Imaginary line around the middle of Earth
5
Where river meets the sea
6
Flat grassland in tropical regions
7
Seasonal heavy rainfall
8
Steep rock face at edge of land
10
Body of water surrounded by land
11
Region near the equator
Down
2
Large natural elevation of earth
3
Distance east or west of prime meridian
4
Wearing away of land by water or wind
9
Largest hot desert in the world