Nursing Elites

1. Which sound waves have a higher 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: A

Rationale: Sound waves that are closer together have a higher pitch. This is explained by the Doppler Effect, where as a source of sound moves closer to an observer, the waves are compressed, resulting in a higher frequency and a higher pitch. Conversely, when the source moves away, the waves are stretched, leading to a lower frequency and a lower pitch. Therefore, choice A is correct. Choices B, C, and D are incorrect as they do not accurately describe the relationship between sound wave frequency and pitch.

2. All of the following are mentioned in the passage as potential risks from inadequate sleep EXCEPT ___________.

• A. Cancer
• B. Obesity
• C. Diabetes
• D. Depression

Correct answer: A

Rationale: Cancer is not mentioned as a risk associated with inadequate sleep in the passage.

3. What is the main idea of this passage?

• A. The water cycle consists of precipitation, evaporation, and condensation
• B. Water cycle components include only evaporation and condensation
• C. The water cycle includes precipitation, runoff, evaporation, and condensation
• D. The water cycle happens in the atmosphere only

Correct answer: A

Rationale: The correct answer is A: 'The water cycle consists of precipitation, evaporation, and condensation.' The passage explains the stages of the water cycle, which are precipitation (rain, snow, sleet, or hail), runoff, evaporation, and condensation. Choice B is incorrect because the water cycle involves more than just evaporation and condensation. Choice C is incorrect as it includes an additional element, runoff, not mentioned as a primary component of the water cycle in the passage. Choice D is incorrect as the water cycle involves processes both in the atmosphere and on the ground.

4. What is the best definition of 'efficient' as used in the third paragraph?

• A. Slow but steady.
• B. Productive without waste.
• C. Wasteful and careless.
• D. Quick but sloppy.

Correct answer: B

Rationale: The correct definition of 'efficient' in the third paragraph is 'Productive without waste.' In the extract provided, it discusses how different cultures developed tools like cutlery and chopsticks to efficiently eat food. Efficiency here refers to getting something done with the least amount of waste. Choices A, C, and D are incorrect because they do not accurately capture the concept of efficiency discussed in the passage.

5. What is implied by the author's mention of the Kayapo people in the passage on the Amazon Rainforest?

• A. The Kayapo people destroy the environment for farming.
• B. The Kayapo people farm in an environmentally friendly way.
• C. The Kayapo people contribute to deforestation.
• D. The Kayapo people hunt animals for survival.

Correct answer: B

Rationale: The mention of the Kayapo people in the passage highlights how they farm in an environmentally friendly manner. Instead of using chemicals, they enrich the soil by burning wood and plant banana trees, attracting wasps that feed on harmful insects. This sustainable farming practice showcases their efforts to coexist with the rainforest ecosystem without causing harm. The other choices are incorrect: A is refuted by the passage as the Kayapo people are described as farming in an environmentally friendly way, C is incorrect as the passage does not mention the Kayapo people contributing to deforestation, and D is not supported by the text as there is no mention of the Kayapo people hunting animals for survival.

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