Across
1
Low area between mountains
4
Goods brought in from another country
5
Low-lying land surrounded by higher ground
6
Cold treeless Arctic plain
7
Distance east or west of prime meridian
8
Landform where river meets the sea
Down
2
Wearing away of land by water or wind
3
Imaginary line around the middle of Earth
9
Flat elevated area of land
10
Ridge of rock or coral near the surface
11
Ocean between Americas and Europe/Africa