Across
1
Largest river in South America
4
Low area between mountains
6
Distance east or west of prime meridian
8
Piece of land jutting into the sea
10
One of seven major landmasses
Down
2
Flat grassland in tropical regions
3
Low-lying land surrounded by higher ground
5
Goods brought in from another country
7
Large slow-moving mass of ice
9
Body of water surrounded by land