Across
1
Wearing away of land by water or wind
5
Largest ocean on Earth
7
Ocean between Americas and Europe/Africa
9
Vast body of salt water
10
Height above sea level
Down
2
Low-lying land surrounded by higher ground
3
Long-term weather patterns of an area
4
Large natural stream of water
6
One of seven major landmasses
8
Mountain that can erupt with lava