| Term | Definition |
| Ameliorate | become better, make better, improve, enhance |
| amelioration | improvement |
| conserve | keep from wate, loss, or decay, to save |
| conservation | preservation from loss or injury |
| conservationist | one who advocates the conservation of natural resources |
| detriment | injury, damage, or something that causes disadvantage |
| detrimental | harmful, damaging |
| exotic | introduced from another country, foreign. strikingly unusual or strange |
| folly | lack of good sense, foolish action or undertaking |
| formerly | in an earlier period, previously |
| former | preceding, previous |
| harmony | peacable or friendly relations, accord, agreement, tranquility, concord |
| harmonious | friendly, amicable |
| ignore | refuse to take notice of disregard |
| ignoramous | ignorant, stupid person, dunce, dolt, nincompoop, dullard |
| impediment | something that hinders or obstructs, hindrance, obstacle |
| impede | interefere with or slow the progress of, hinder, obstruct |
| indolent | disposed to avoid exertion, lazy, idle, lethargic |
| indolence | idleness, laziness |
| intact | untouched by anything that damages or diminishes, left comlete or entire, uninjured |
| invalid | not binding in law, having no force of effect, void, nugatory |
| invalidate | abolish, annul |
| invaild | sickly or disabled person |
| noncarcinogenic | not producing, or tending ot produce, cancer |
| parsimonious | unduly sparing in the spending of money, sitngy, miserly, tightfisted |
| parsimony | stinginess, parsimoniousness |
| raze | to destroy utterly by tearing down, demolish, level |
| reticent | inclined to be silent or secretive, uncommunicative, reserved |
| reticence | restraint in communicating |