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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
(1) Most of the ingredients in cigarettes cause serious damage to health, but three of the worst are tar, carbon monoxide, and nicotine. (2) Tar, the brown, sticky substance produced by a burning cigarette, is a messy mixture of hundreds of toxic chemicals. (3) At least forty-three of those chemicals cause cancer. (4) The other two destructive substances, carbon monoxide and nicotine, contribute to heart disease. (5) Carbon monoxide prevents red blood cells from carrying a full load of oxygen. (6) Therefore, it reduces the body's oxygen supply. (7) At the same time, nicotine is not only constricting blood vessels and impairing blood flow but also stimulating the heart, making it beat faster and crave more oxygen. (8) Consequently, carbon monoxide and nicotine work together to damage the cardiovascular system.
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Give the number of the topic sentence in the paragraph above.
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 (1) The wide availability of canned, frozen, and precooked foods has definitely improved people's lives by freeing up time that used to be spent preparing meals. (2) Unfortunately, these convenience foods have also had some negative consequences. (3) One effect has been a rise in obesity. (4) Because plentiful convenience foods need little to no preparation time, many people have developed a tendency to eat too much and put on too much weight. (5) These foods also tend to contain unhealthy ingredients like preservatives and high amounts of salt. (6) Therefore, people who rely too heavily on them can find themselves with health problems such as heart disease. (7) Another negative result of convenience foods has been the death of family dinner time. (8) Now that people can grab prepackaged foods on the run, they just don't try as hard to sit down to a meal as a family. (9) Convenience foods have also contributed to Americans' rushed lifestyle overall. (10) Unfortunately, when it became easy to just microwave a burrito and keep going, sitting down and eating a relaxed meal seemed like a waste of precious time.
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Give the number of the topic sentence in the paragraph above.
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The high rate of divorce has caused an increase in the number of single-parent families in America.
The part of the sentence that indicates cause is _____________________________.
The high rate of divorce
an increase in the number of single-parent families in America
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