| A | B |
|---|
| shortage | an amount of something that is not enough |
| betrayed | to be unfaithful to |
| species | a group of animals or plants that are similar and are able to mate and have offspring |
| continent | one of the main land masses of the earth |
| scarce | not enough to meet a demand |
| focus | to concentrate or center; fix |
| included | to put into a group, set or total |
| alert | watching out for danger; attentive |
| introduce | to bring or put in something new or different |
| opportunities | a good chance, as to advance oneself |
