| A | B |
|---|
| pollute | to harm by making dirty |
| boon | a good thing |
| nonsense | pointless talk, actions or ideas |
| disprove | to show that something is untrue |
| clutter | to crowd or litter |
| recycle | to collect and prepare materials to be used again |
| considerate | thoughtful of others |
| discard | to throw away |
| hazard | something that may cause harm |
| geologist | a scientist who studies the Earth |
| sustain | to keep up |
| biosphere | the land and sea that cover the Earth, and all the life in them |
| contaminate | to add something harmful |
| embrace | to take up willingly |
| disregard | to ignore |
| pamphlet | a short printed work that gives inforamtion or supports a position |
