| A | B |
|---|
| exotic | foreign; strangely different |
| geological | concerned with geology, the science that deals with the physical nature of the earth |
| glacial | of or like ice or glaciers; freezing cold and unfriendly; moving as slowly as a glacier |
| ecosystem | the basic eclogical unit animals, plants, and bacterria living as one with the environment |
| barren | sterile; infertile; unable to reproduce; unproductive; empty; dull |
| diversity | difference; unlikeness; variety |
| navigable | large enough and open enough to be traveled by ships; capable of being steered or directed |
| aerial | of, in. or by the air; having tod o with aircraft or flying; like air; not substantial; imaginary |
| via | by way of; by means of |
| tributary | a small stream flowing into a larger one; owed or paid as tribute; contributory |
| encounter | to meet, usually unexpectedly; to face in battle or conflict; a meeting |
| challenge | a demanding task; a dare; to call into question; to call to take part in a contest or duel |
| unpredictable | surprising; not predictable; tending to act in unexpected ways |
| poach | to cook in or over water; to enter another's property illegally; to interfere with or manifesting |
| vital | essential; full of life and vigor; having to to do with or manifesting life |
| inquisitive | inclined to ask questions; curious |
| universal | present everywhere; unlimited; that can be used for many different kinds, sizes, and so on |
| propels | to push or dirive forward |
| alternate | to follow by turns; to take turns; a substitute; substitute |
| effect | results; a force which makes something happen; to cause |
