| A | B |
|---|
| accumulate | increase in number or amount |
| aggravate | to make worse or anger or annoy |
| conserve | save by using carefully |
| contaminate | to harm by contact with something undesirable |
| diminish | to make or become smaller or less, to reduce |
| drastic | severe or extreme |
| extravagant | spending, costing, or using more than is required |
| frugal | careful in spending or using something |
| impurity | something that is harmful or dirty |
| peril | danger |
| perpetual | lasting or seeming to last forever |
| resource | a supply that can be used when there is a need |
| substitute | to replace one thing or person for another |
| sustain | to keep up or support |
| vital | necessary for continued life or prosperity, full of lively spirit, or of greatest importance |
