Across
1
Ocean between Americas and Europe/Africa
5
Low area between mountains
6
Large natural stream of water
7
Low-lying land surrounded by higher ground
9
Imaginary line around the middle of Earth
10
Distance east or west of prime meridian
Down
2
Dry land with little rainfall
3
Piece of land jutting into the sea
4
Cold treeless Arctic plain
8
Large slow-moving mass of ice