| A | B |
| to cut down | to make something fall by cutting it |
| to follow | to happen after something |
| to vary | to become different; to change |
| average | a number in the center--not extreme |
| common | happening or found often in many places |
| extreme | the greatest or strongest possible |
| global | affecting the whole world |
| major | important; great |
| natural | connected with things that were NOT made by people |
| typical | showing the usual qualities of a person, thing or type |
| worse | not as good; less well; (bad--X--worst) |
| yearly | happening every year or once a year |
| generally | usually |
| slowly | not fast |
| at least | not less than (and probably more) |
| in contrast | used to show the difference between two things (similar to "but") |