Land Resources Flashcards
1
Q
aggregate
A
a natural mixture of sand, gravel, and crushed stone
2
Q
bedrock
A
a layer of solid rock found beneath soil
3
Q
desertification
A
the process by which fertile land becomes desert
4
Q
ore
A
a naturally occurring mineral, rock, or metal that can be mined for profit
5
Q
topsoil
A
the top layer of soil
