| A | B |
|---|
| mesa | a hill with a flat top and steep sides |
| rain shadow | the drier side of the mountains |
| reservoir | a human-made lake |
| irrigation | use of canals, ditches or pipes to bring water to dry places |
| aerospace | the building of aircraft and equipment for air and space travel |
| refinery | a factory that turns crude oil into products |
| xeriscape | a lanscaping method that conserves water |
| well | a hole into the ground to get water |
