English

2. The opposite of easy(p.83,line 4)
5. When something stops working it's_____
8. The same as period(p.83,line 9)
11. Reaching a high or the highest degree; exceptional;very severe(p.95,line 10)
12. A period of one hundred years(p.95,line 4)
14. Existing in or derived from nature; not made or caused by humankind.(p.91,line 28)
16. People who are studying or have expert knowledge of one or more of the natural or physical sciences.(p.102,line 3)
17. When you buy something the money is____
19. The same as maintain (p.95,line 17)

1. One of the milestones in the struggle of feminism was the __ of bras
2. When we were kids we used to do it in art class
3. The same as modification(p.102,line 15)
4. You do this with cars,trucks
6. A very large expanse of sea, in particular each of the main areas into which the sea is divided geographically.(p.102,line 23)
7. A colorless, odorless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons(p. 91, line 20)
9. Start something
10. The opposite of lie(p.87,line 1)
13. People who designs, builds, or maintains engines, machines, or public works (p. 83, line 19)
15. The same as rock,flint(p.83,line 20)
18. A celestial body distinguished from the fixed stars by having an apparent motion of its own,especially with reference to its supposed influence on people and events (p. 83, line 32)