Asked by Kayla Cannington on Mar 10, 2024

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Read the paragraph below and answer the questions that follow.
(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.
Select the number of the topic sentence in the paragraph above.

A) Sentence 1
B) Sentence 2
C) Sentence 3

Cardiovascular System

The body's system comprising the heart and blood vessels, responsible for circulating blood and transporting nutrients and oxygen.

Carbon Monoxide

A colorless, odorless, and poisonous gas produced by the incomplete combustion of carbon-containing materials.

Tar

A dark, thick, and sticky liquid derived from coal or wood, used for waterproofing, sealing, and paving, or as a component in certain manufacturing processes.

  • Identify the structure of paragraphs, focusing on topic sentences and supporting details.
  • Examine the health hazards linked to smoking cigarettes.
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Verified Answer

AG
Angel GregoryMar 10, 2024
Final Answer :
A
Explanation :
The topic sentence introduces the main idea of the paragraph, which is that cigarettes contain ingredients that cause serious damage to health. Sentence 1 states this idea explicitly, while sentences 2-8 provide details and examples to support it.