Nursing Elites

1. What is the main idea of the passage about Toxins and Your Health?

• A. Environmental toxins may have dire health effects over time.
• B. Of three toxins studied, lead has the worst effect on health.
• C. Toxins may accumulate in the bones of older patients.
• D. Johns Hopkins University has discovered a new use for lead.

Correct answer: A

Rationale: The passage emphasizes the long-term effects of environmental toxins such as lead, pesticides, and mercury on brain health, particularly as individuals age. Dr. Brian Schwartz's quote highlights the link between environmental exposure and cognitive decline, framing the entire discussion around the potential health ramifications of such exposure over time. This clearly aligns with choice A, making it the main idea of the passage.

2. What does the author suggest about the Earth's tilt in the passage on Daylight Savings Time?

• A. The Earth's tilt has no effect on the seasons.
• B. The Earth's tilt affects the amount of sunlight different areas receive.
• C. The Earth's tilt is constant throughout the year.
• D. The Earth's tilt changes dramatically during the seasons.

Correct answer: B

Rationale: The author suggests that the Earth's tilt affects the amount of sunlight different areas receive, influencing the seasons. The passage explains how the tilt of the Earth towards the sun results in different regions receiving varying amounts of sunlight, leading to the existence of seasons. This tilt causes regions near the equator to receive more sunlight consistently, while the Poles experience periods of constant darkness or sunlight, creating different seasons. Choices A, C, and D are incorrect because the passage clearly states that the Earth's tilt influences sunlight distribution and subsequently impacts the seasons.

3. What statement about jetlag can be inferred from the passage on Daylight Savings Time?

• A. Jetlag is caused by flying at high speeds.
• B. Jetlag is caused by moving between time zones.
• C. Jetlag is unrelated to time zone changes.
• D. Jetlag is a myth.

Correct answer: B

Rationale: The correct answer is B: 'Jetlag is caused by moving between time zones.' The passage explains that jetlag occurs when moving suddenly from one time zone to another, such as when flying from Asia to North America. This disrupts the body's internal clock, leading to symptoms like tiredness and sleep disturbances. Choice A is incorrect as jetlag is not attributed to high-speed travel but to time zone changes. Choice C is incorrect as the passage clearly links jetlag to changes in time zones. Choice D is incorrect as jetlag is a real phenomenon experienced by individuals who travel across different time zones.

4. What is the relationship between the tilt of the Earth and seasons as explained in the passage on Daylight Savings Time?

• A. The tilt of the Earth has no effect on seasons.
• B. The tilt of the Earth creates seasons.
• C. The tilt of the Earth changes throughout the year.
• D. The tilt of the Earth is random and unpredictable.

Correct answer: B

Rationale: The correct answer is B: 'The tilt of the Earth creates seasons.' The passage explains that the tilt of the Earth causes the different seasons by changing the amount of sunlight different regions receive. This tilt results in varying angles at which sunlight reaches different parts of the Earth, leading to the seasonal changes in temperature and daylight hours. Choice A is incorrect because the passage clearly states that the tilt of the Earth does have an effect on the seasons. Choice C is incorrect because the tilt of the Earth remains relatively constant throughout the year. Choice D is incorrect as the tilt of the Earth is not random but follows a consistent pattern.

5. Which of the following is not listed as a detail in the passage about microbes?

• A. Babies are born coated with germs from the birth canal.
• B. Mice and humans respond to microbes differently.
• C. Few people share the same microbes in the same quantities.
• D. Human bodies contain far more microbes than they do cells.

Correct answer: B

Rationale: The correct answer is B because the passage does not detail that mice and humans respond to microbes differently. The passage discusses how laboratory mice required a particular strain of bacteria to help their immune systems function correctly, indicating a difference in how mice and humans respond to microbes. Choices A, C, and D are all details mentioned in the passage: A discusses babies being coated with germs from the birth canal, C talks about the variation in microbes among individuals, and D states that human bodies contain more microbes than cells.

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