Chapter 7 Answers

Using Facts and Statistics for Support (pp. 98-99)

Practice A
Nine of Iowa’s rivers; Cedar River rose to 32 feet, 12 feet higher than the previous record, set in 1929; 400 city blocks and 3,900 homes were underwater; more than 36,000 Iowans left their homes; disaster areas in 83 of 99 counties; cost at least $737 million; destroyed about 20 percent of grain crop and more than one million acres of corn

Practice B
10,000 species of plants; 130 different kinds
of trees; 1,600 flowering plant species; 4,000 species of non-flowering plants; more than 200 types of birds; 66 types of mammals; 50 native fish species; more species of salamanders can be found there than anywhere else on our planet


Writing About Information in Graphs and Charts (pp 101-103)

Practice B
1. 2006-2007
2. 3000 students 
3. 1000 students 
4. 2006 and 2007 
5. 2006-2009
6. 2015

7. 2015

Paragraph Practice 1 Prewriting (p. 104)
1. Business Management
2. 19%
3. Engineering
4. 26%
5. 45%
6. 9%
7. 9%

8. Mathematics & Computer Sciences, Fine and Applied Arts, 
     Health Professions, Intensive English Language


Introducing Quotes for Support (pp. 107-110)

A

1. Mr. White hall explains, "It takes adults much longer than children to learn a new language."
2. Dr. Jones claims, "Sixty percent of my patients lost weight on this diet."
3. Economist Marianne Watkins notes, "Americans spend more than $115 billion each year on fuel and electricity for their homes."
4. According to Stephen Schneider, "Even a small reduction of solar energy can affect agriculture worldwide."
5. Amelia Earhart said, "Adventure is worthwhile in itself."
6. Rachel Ray said, "I think having an animal in your life makes you a better human."
7. Dr. Ryan, director of the Canyon Zoo, observed, "Koalas sleep 20 hours a day."
8. David Miller states, "It is important to drink lots of water when you exercise."
9. According to Samantha Bliss, "Babies need a lot of physical contact."
10. Zelda Heller points out, "We all need to practice ways to conserve energy."

B
Quotes should be inserted after the following sentences:

1. They are also being careful about the amount of heat and air-conditioning they use.

2. Unfortunately, too many people are combining the two activities, causing accidents that result in serious injury and death.


3. Robo-animals are robots that look, smell and act like real animals.