| A | B |
| aboriginal | native, indiginous |
| equinox | the 2 times of the year when the day and night are equal length |
| solstice | the shortest and longest day of the year |
| bio-diversity | the wide variety of life in a given area |
| cascade | waterfall |
| crater | a big pit |
| plateau | a high area with a flat surface on the top |
| caldera | an old volcano crater that has filled with water and become a lake |
| penninsula | an area of land surrounded by 3 sides on water |
| substantiated | proven |
| proposal | an idea or suggestion put forward |
| noteworthy | important |
| designate | assign |
| archive | document or record storage |
| taiga | a cold northern forrest |
| biome | an area of land with similar plant and animal life |
| atoll | a ring shaped coral reef or string of island, usually formed by volcanic activitiy |
| subduction | when one tectonic plate moves under another plate |
| tectonic plates | giant sections of the earth's crust which are slowly moving |
| tsunami | tidal wave |