| A | B |
| convert | cause to change in form, character or function |
| absorb | take in or soak up (energy, liquid or other substance) by chemical or physical action |
| severe | very great; intense |
| disrupt | drastically alter or destroy the structure (of something) |
| inexpensive | not costing a great deal; cheap |
| external | outer surface |
| interdependence | the dependence of two or more people |
| conduct | organize and carry out |
| reliable | consistently good in quality or performance; able to be trusted |
| benefit | an advantage or profit gained from something |
| feedback | the modification or control of a process or system by its results or effects |
| accumulation | a mass or quantity of something that has gradually gathered or been acquired |
| independent | free from outside control; not depending on another's authority |
| organic | relating to or derived from living matter |
| inorganic | not consisting of or deriving from living matter |