Nursing Elites

1. What is implied about the rainforest's role in global climate?

• A. The rainforest has little impact on the climate.
• B. The rainforest plays a crucial role in regulating the climate.
• C. The rainforest is mainly important for biodiversity.
• D. The rainforest's destruction has no global consequences.

Correct answer: B

Rationale: The rainforest plays a crucial role in regulating the global climate by absorbing carbon dioxide. The extract highlights the fact that trees take in carbon dioxide and give off oxygen. When trees are cut down, the amount of carbon dioxide increases, contributing to global warming. This emphasizes the significant impact of rainforests on the climate. Choice A is incorrect as the extract clearly states the importance of rainforests in absorbing carbon dioxide. Choice C, while true, is not directly related to the implied role of rainforests in regulating the climate. Choice D is also incorrect as the destruction of rainforests does have global consequences, such as contributing to global warming.

2. What is the main idea of the passage about Super Foods?

• A. Super foods are low in calories but provide essential nutrients that have enormous health benefits.
• B. U.S. supermarkets should make a point of stocking up on powerful super foods.
• C. Blueberries are a super food that contains a natural inflammatory as well as important vitamins and minerals.
• D. Doctors now believe that daily inclusion of super foods in the diet can reverse the aging process.

Correct answer: A

Rationale: The main idea emphasizes that superfoods are low in calories yet rich in essential nutrients that provide significant health benefits. This statement captures the overall essence of the passage, while the other options focus too narrowly or introduce unsupported claims, making A the correct answer.

3. Which sound waves have a lower pitch?

• A. Those waves that are closer together
• B. Those waves that are farther apart
• C. Those waves that travel a long distance
• D. Those waves that travel a short distance

Correct answer: B

Rationale: Sound waves that are farther apart have a lower pitch. The Doppler Effect explains that as objects emitting sound move away, the sound waves become more spaced out, resulting in a lower frequency and a lower pitch. Choice A is incorrect because waves that are closer together have a higher frequency and a higher pitch. Choices C and D are not directly related to determining the pitch of sound waves.

4. FRAX takes into account all of the following factors EXCEPT ___________.

• A. Lifestyle choices
• B. Exposure to toxins
• C. Genetic heritage
• D. Exposure to sunlight

Correct answer: B

Rationale: FRAX, a tool used to assess fracture risk, considers various factors like lifestyle choices, genetic heritage, and exposure to sunlight. However, exposure to toxins is not mentioned in the provided extract as a factor considered by FRAX. Therefore, the correct answer is B. Exposure to toxins is unrelated to fracture risk assessment as per the information provided. Lifestyle choices, genetic heritage, and exposure to sunlight are all factors that FRAX takes into consideration to determine the risk of experiencing a fracture within the next decade.

5. Why does the author mention 'impact craters' in line 16?

• A. To explain the corrosive effects of atmospheric weathering
• B. To explain why the Moon has no plant life because of meteorites
• C. To show the result of the Moon not having an atmosphere
• D. To show the result of the Moon not having active tectonic or volcanic activity

Correct answer: C

Rationale: The mention of impact craters in the text is to highlight the consequence of the Moon lacking an atmosphere. The absence of an atmosphere on the Moon leaves it vulnerable to meteorite impacts, resulting in the multitude of impact craters on its surface. Choice A is incorrect because the mention of impact craters is not related to atmospheric weathering but rather to the lack of an atmosphere. Choice B is incorrect as it misinterprets the reason for the absence of plant life on the Moon. Choice D is incorrect as the text explicitly states that the Moon lacks tectonic or volcanic activity, which is not the focus of the mention of impact craters.

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