Across
1
Largest river in South America
3
One of seven major landmasses
5
Distance east or west of prime meridian
8
Narrow sea inlet between cliffs
9
Imaginary line around the middle of Earth
Down
2
Line dividing two countries
3
Deep narrow valley with steep sides
4
Land surrounded by water
6
Ridge of rock or coral near the surface
7
Large natural stream of water