Across
1
Wearing away of land by water or wind
6
Imaginary line around the middle of Earth
7
Line dividing two countries
9
Distance north or south of equator
Down
2
Distance east or west of prime meridian
3
Steep rock face at edge of land
4
One of seven major landmasses
5
Mountain that can erupt with lava
8
Ridge of rock or coral near the surface