| A | B |
| archaeologist | person who studies past civilizations |
| garbage | trash or rubbish |
| investigate | study or learn about something |
| modern | today's |
| landfill | place where garbage is stored |
| reveal | show |
| actually | really |
| dispose of | through away |
| hazardous | dangerous |
| recyclable | thing that can be used to make a new material |
| on the other hand | phrase to give an opposite idea |
| waste | use badly |
| battery | a way to make electricity |
| end up | to reach or come to a place |
| rechargeable | electrical device able to be used again |
| deep | serious |
| check in | tell an airline or hotel that you are ready |
| drop out | stop going to school |
| get through | finish |
| put back | return something to its place |
| think over | think about something before making a decision |