unit 2 exercise

4. It wasn't that long ago that cigarette lighters or radios were automotive _________
6. when so many of our young people are falling victim of the drink and drug scourge that is sweeping across the country like a typhoon, I had lost ______ in these young adults
7. He explains his ______ from school by saying he is on a part-time timetable
8. The variant genes that cause recessive _______ illnesses tend to be very rare.
10. This has become particularly necessary with the increasing number of observations that _________ the theory's predictions
14. Yields of corn increased 38 percent and wheat yields increased 81 percent when these crops were grown in _______ with cotton
17. $1.8 billion of taxpayer money has been spent, allegedly ______ farmers but their losses are greater than the compensation
18. The movie raises a lot of legitimate questions about the ______ of cloning
19. The ________ used in conventional farming lead to many diseases, including cancer
20. We spread ______ on our land to help fertilize our crops without chemicals

1. It is often _____ that the reason why the university put a stop to its plans to build a research centre in 2004 is because of the threats by animal rights activists
2. Coal-fired power stations continue to ______ large quantities of sulfur dioxide
3. _______ food is produced without the chemical fertilizers and pesticides used in conventional food production
5. The ______ that power the electric motor cost thousands
9. On the food arrangements, fresh and wholesome _______ food will be cooked for the children
11. Completely inhabiting his character's _______ and quirks, he is tailor made for the role
12. It requires a generous _______ to the situations in which privacy is to be protected
13. He criticized modern methods of cultivation and pointed out that the use of chemical _______ had affected soil fertility
15. I am so preoccupied with my _______ that I am not capable of seeing one step back or one step ahead
16. All commercial potato varieties grown in North America are _______ for low levels of solanine.