Can you find the important words in the assignment question?
| Keyword 1 | Keyword 2 | Keyword 3 |
| global warming | environment | sustainable |
When you have decided what the important words are, these will be the keywords you use to look for information.
These keywords will form the beginning of your list of search terms for your research. You need to understand what these keywords mean, and find other words which have the same meaning.