Across
1
Ridge of rock or coral near the surface
3
Line dividing two countries
4
Region between the two tropic lines
9
Largest ocean on Earth
10
Total number of people in an area
Down
1
Large natural stream of water
2
Goods sold to another country
5
Raised area of land, smaller than a mountain
6
Dry land with little rainfall
7
Half of the Earth
8
Land surrounded by water