| A | B |
|---|
| erosion | to wear away by water/wind/glacial ice |
| landslide | rapid downward movement of a mass of rock/soil on a slope |
| glacier | a large body of ice moving slowly down a slope or valley or spreading outward on a land surface |
| metal | substance that is a good conductor of electricity and heat |
| mineral | natural substance from the ground (coal/water/rock/salt/sand/natural gas) |
| recycle | to process to make material for human use |
| reduce | to lessen the amount |
| reuse | to use again |
| renew | to make like new |
| weathering | weather actions that cause changes in the earth's surface |
| natural environment | the complex of physical, chemical, and biotic factors (as climate, soil, and living things) that act upon an organism or an ecological community and ultimately determine its form and survival |
| constructed environment | man-made environment |
| freshwater | water that is not salty |
| natural gas | gas from the earth's crust through natural openings |
| coal | charred wood used as a natural fuel |
| habitat | place where a plant or animal naturally lives/grows |
| pollution | environmental contamination with man-made waste |
| fossil fuels | a fuel (coal, oil, or natural gas) formed in the earth from plant or animal remains |
| sustainability | using a resource so it is not depleted (gone) or permanently damaged |
