Across
1
Dry land with little rainfall
5
Deep narrow valley with steep sides
6
Large slow-moving mass of ice
7
Line dividing two countries
8
Raised area of land, smaller than a mountain
10
Largest ocean on Earth
Down
2
Flat grassland in tropical regions
3
Ridge of rock or coral near the surface
4
Distance east or west of prime meridian
5
Tool for finding directions
9
Landform where river meets the sea