This question is called analogy, the comparison of two things or how they are related, im not sure with my answer but im really want to help you though so here are my answers:
21. C. provocative: dull
22. A. scholar: encyclopedia
23. D. literal:figurative
24. A. olfactory:sight
25. B. re: again
Morelikely anything can be achieved
1.the heads on Easter island and how they move
2. how the pyramids were built
3. how the temperature of the earth is changing
Answer:
<em>Any type of action taken by large groups such as petitions, demonstrations, etc. </em>
<em>Hope this helps :)</em>