| A | B |
|---|
| invasive | something that spreads even though it is unwelcome |
| advocates | people who strongly support or defend a cause |
| commonplace | soemthing that is ordinary or unremarkable |
| designate | choosing him or her to accomplish the task |
| initial | the first idea, action, or object |
| insulation | material that prevents heat and cold from escaping or entering something |
| irrational | thoughts and behaviors are not based on reasonable thinking |
| optimal | best or most appropriate |
