Across
1
Distance east or west of prime meridian
6
Physical features of land
8
Total number of people in an area
9
Land surrounded by water on three sides
10
Half of the Earth
Down
2
Height above sea level
3
Cold treeless Arctic plain
4
Imaginary line around the middle of Earth
5
Dry land with little rainfall
7
Distance north or south of equator
11
Line dividing two countries
12
Low area between mountains