Across
1
Piece of land jutting into the sea
4
Largest river in South America
6
Low-lying land surrounded by higher ground
7
Large natural stream of water
8
Cold treeless Arctic plain
9
Largest ocean on Earth
13
Long-term weather patterns of an area
Down
2
Distance east or west of prime meridian
3
Vast body of salt water
5
Total number of people in an area
10
Raised area of land, smaller than a mountain
11
Line dividing two countries
12
Goods brought in from another country