| Term | Definition |
| fossil fuels | coal, oil, natural gas, and other fuels that are ancient remains of plants and animals. |
| baby boomers | The generation of children born between 1946 and 1964 |
| with the naked eye | to see something without any visual aid |
| correlation | mutual relationship |
| moisture | wetness caused by water |
| velocity | Speed in a given direction. |
| irrigation | supplying dry land with water by means of ditches etc |
| to compound problems | to make simple problems even more problematic |
| sceptic | someone who habitually doubts accepted beliefs |
| contraption | device or gadget |
| to collide with | to hit smg |
| heat wave | a wave of unusually hot weather |
| geothermal energy | energy derived from the heat in the interior of the earth |
| culprit | A guilty person. |
| selective garbage collection | to collect trash according to certain principles |
| a vast exposure of | a huge land of |
| a sliver of | a slice of |
| to retreat | to pull back or move away |
| to be chock -full of | to be completely full of |
| caterpillar | a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth |
| coral reef | a reef consisting of coral consolidated into limestone |
| evaporation | the process of extracting moisture |
| to trigger smg | to set off smg |
| precipitation | the falling to earth of any form of water (rain or snow or hail or sleet or mist) |
| to absorb smg | to assimilate; to take up smg |
| to combat smg | to fight smg |
| radiation | energy that is radiated or transmitted in the form of rays or waves or particles |
| glacier | a slowly moving mass of ice |
| drought | a temporary shortage of rainfall |
| niche | full range of physical and biological conditions in which an organsim lives and the way in which the organism uses those conditions |
| peer-reviewed journals | journals reviewed by your associates |
| collision | a brief event in which two or more bodies come together |
| chick hatch | the production of a young chocken from an egg |
| to run for president | the act of trying to achive the position of President |
| controversy | a dispute between sides holding opposite views. an argument or debate |
| forester | someone trained in forestry |
| to bleach smg | the act of whitening something by bleaching it |
| to emit smg | give off, send forth, or discharge |
| migratory birds | birds habitually moving from place to place especially in search of seasonal work |
| tree ring | width of rings made by the growth of a tree |
| mosquito line | the attitude, above which the mosquitos won't go |
| species loss | the dying out of certain species |
| all time record | the highest/biggest record so far in history |
| to pose a problem | to introduce a problem |
| Southern hemisphere | the hemisphere south of the equator |
| pine bettle | the species of bug, living on pine trees |