Unit 2

1. to give an authoritative order.
4. having the ability, fitness, or quality necessary to do or achieve something specific.
8. to eat or drink food or buy goods and services.
9. new methods; advanced and original.
10. a condition or fact that affects a situation
11. outside the understanding, limits, or reach of something.
13. to order or tell someone to do something
15. the theory and development of computer systems able to perform tasks normally requiring human intelligence
18. the action or use of something rather than with theory and ideas.
20. very interesting or captivating.

2. the noun of 'access'
3. consistently good in quality or performance; able to be trusted.
5. the verb of 'intention'. What you are planning to do.
6. to substitute one thing for another.
7. a generic term for non-renewable energy sources such as coal, coal products, natural gas, derived gas, crude oil, petroleum products and non-renewable wastes.
10. a phrasal verb. another way to say 'reduce'.
12. (of one or more things) available as another possibility or choice.
14. extending or reaching throughout the world.(international, global).
16. single; separate.
17. taking place or progressing slowly.
19. an effect or influence.