| A | B |
|---|
| kum | deserts |
| wadi | stream beads that remain dry until a heavy rain |
| alluvial soil | rich soil made up of sand and mud deposited by moving water |
| phosphate | chemical used in fertilizers |
| oasis | a place in the desert where underground water surfaces |
| pastorialism | the raising and grazing of livestock |
| cereal | food grains such as barley, oats, and wheat |
| Sahara | largest desert in the world |
