Across
1
Distance east or west of prime meridian
3
Steep rock face at edge of land
5
Flat elevated area of land
6
Chain or group of islands
7
Largest ocean on Earth
11
Area where water covers the soil
12
Ridge of rock or coral near the surface
Down
2
Deep narrow valley with steep sides
3
Piece of land jutting into the sea
4
Imaginary line around the middle of Earth
8
Wearing away of land by water or wind
9
Land surrounded by water
10
Region surrounding the North Pole