Across
1
Largest ocean on Earth
3
Line dividing two countries
5
Height above sea level
6
Wearing away of land by water or wind
9
Raised area of land, smaller than a mountain
10
Distance north or south of equator
Down
2
Large natural stream of water
4
Piece of land jutting into the sea
7
Long-term weather patterns of an area
8
Largest hot desert in the world