Across
1
Largest ocean on Earth
4
Distance north or south of equator
5
Total number of people in an area
10
Physical features of land
11
Deep narrow valley with steep sides
Down
2
Land surrounded by water
3
Large area covered with trees
6
Line dividing two countries
7
Largest river in South America
8
Mountain that can erupt with lava
9
Flat elevated area of land
12
One of seven major landmasses