Nursing Elites

1. Which of the following would be the best concluding statement for this passage?

• A. States should consider the importance of foreign languages for the global economy when making policies regarding foreign language requirements for high school graduation.
• B. Policies for high school graduation should consider the significance of foreign languages for the global economy, college acceptance rates, and job opportunities.
• C. Influence of a second language on college acceptance rates warrants a foreign language class as a high school graduation requirement.
• D. The difficulty of obtaining a job in today’s economy without knowledge of multiple languages should be considered when setting foreign language requirements for high school graduation.

Correct answer: B

Rationale: Choice B provides the best concluding statement for this passage as it encapsulates the main argument and key supporting details presented in the extract. The passage emphasizes the importance of foreign languages for the global economy, the impact on college acceptance rates, and enhanced job opportunities for individuals proficient in more than one language. Choice B effectively summarizes these points, making it the most appropriate conclusion. Choices A, C, and D, while related to the main argument, only touch on one supporting detail each. Choice A focuses solely on the importance of foreign languages for the global economy, while choice C emphasizes the influence of a second language on college acceptance rates. Choice D highlights the difficulty of job acquisition without knowledge of multiple languages. These choices do not encompass the breadth of supporting details provided in the passage, making them less effective as concluding statements.

2. What are the constituents of an atomic nucleus?

• A. Electrons and protons only
• B. Protons and neutrons only
• C. Electrons, protons, and neutrons
• D. None of the above

Correct answer: B

Rationale: The correct answer is B: Protons and neutrons only. Electrons are located outside the nucleus in electron shells. Protons and neutrons are the subatomic particles found within the nucleus of an atom. Protons carry a positive charge, while neutrons are neutral. These particles contribute to the mass and stability of the nucleus. Choice A is incorrect because electrons are not part of the nucleus. Choice C is incorrect as electrons are not found within the nucleus, only protons and neutrons. Choice D is incorrect as protons and neutrons are indeed constituents of an atomic nucleus.

3. The van't Hoff factor (i) accounts for the number of particles a solute dissociates into in solution. For a compound that dissociates completely in water, i would be...

• A. 0
• B. Less than 1
• C. 1
• D. More than 1

Correct answer: D

Rationale: The van't Hoff factor (i) represents the number of particles a solute dissociates into in solution. For a compound that dissociates completely in water, i would be more than 1 because it breaks apart into more particles than the original compound. This is due to complete dissociation leading to an increase in the number of particles in solution, resulting in i being greater than 1. Choice A is incorrect as a compound that dissociates completely will not have an i value of 0. Choice B is incorrect because when a compound dissociates completely, the van't Hoff factor is not less than 1. Choice C is incorrect as a compound that dissociates completely will not have an i value of 1, but rather more than 1 due to the increased number of particles in solution.

4. A scientist is trying to determine how much poison will kill a rat the fastest. Which of the following statements is an example of an appropriate hypothesis?

• A. Rats that are given lots of poison seem to die quickly.
• B. Does the amount of poison affect how quickly the rat dies?
• C. The more poison a rat is given, the quicker it will die.
• D. Poison is fatal to rats.

Correct answer: C

Rationale: A valid hypothesis must be a testable statement that predicts a relationship between variables. Option C is the only statement that presents a clear cause-and-effect relationship between the amount of poison given and the time it takes for the rat to die. Option A is descriptive without predicting an outcome, option B is a question rather than a statement, and option D is a general fact about poison and rats, lacking a specific hypothesis for testing.

5. According to the food chain diagram, which of the following animals has no natural predators?

• A. Vulture
• B. Cobra
• C. Mongoose
• D. Aardvark

Correct answer: B

Rationale: The correct answer is B, Cobra. In the food chain diagram, cobras are often considered apex predators, meaning they are at the top of the food chain and do not have natural predators. Vultures (choice A), although scavengers, may face competition but not direct predators. Mongooses (choice C) are known for preying on snakes, including cobras, and aardvarks (choice D) are part of the food chain and have predators like lions and hyenas.

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