Nursing Elites

1. What type of intermolecular force is a dipole attraction?

• A. Strong
• B. Weak
• C. Medium
• D. Very strong

Correct answer: B

Rationale: A dipole attraction is considered a weak intermolecular force. It occurs between molecules with permanent dipoles, where the positive end of one molecule is attracted to the negative end of another molecule. While dipole-dipole interactions are stronger than dispersion forces, they are weaker than hydrogen bonding or ion-dipole interactions. Therefore, the correct answer is 'Weak.' Choices A, C, and D are incorrect because dipole attractions are not classified as strong, medium, or very strong intermolecular forces, but rather fall into the category of weak intermolecular forces.

2. 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.

3. In nature, water vapor becomes liquid water through the process of ___________.

• A. condensation
• B. sublimation
• C. precipitation
• D. absorption

Correct answer: A

Rationale: In nature, water vapor becomes liquid water through the process of condensation. Condensation occurs when water vapor cools and changes its state from a gas to a liquid, forming droplets that we commonly see as water droplets on surfaces or clouds in the sky. Sublimation refers to the transition from a solid to a gas without passing through the liquid phase. Precipitation is the process where water in the atmosphere falls to the ground as rain, snow, sleet, or hail. Absorption is the process of one substance being taken in by another.

4. Which nutrients are important for bone health?

• A. Vitamin D
• B. Calcium and phosphorus
• C. Iron and zinc
• D. Magnesium and sodium

Correct answer: B

Rationale: Calcium and phosphorus are crucial nutrients for bone health as they are essential minerals required for bone strength, density, and various body functions. Adequate intake of calcium and phosphorus through the diet is important for maintaining healthy bones and preventing conditions like osteoporosis. Vitamin D helps with calcium absorption, but it is not the main nutrient responsible for bone health. Iron and zinc are important for other bodily functions, not specifically bone health. Magnesium and sodium, while important for overall health, are not as directly linked to bone health as calcium and phosphorus.

5. Select the word that will make the following sentence grammatically correct. The lounge needs a thorough cleaning, ________ the windows must be washed.

• A. and
• B. or
• C. but
• D. yet

Correct answer: A

Rationale: The correct answer is 'and.' The sentence requires a conjunction that shows the need for both a thorough cleaning and washing the windows. The word 'and' is used to connect two actions that must be performed, indicating a list of tasks that should be completed in the lounge. Choices B, C, and D are incorrect because 'or' would imply a choice between cleaning and washing the windows, 'but' would suggest a contrast or contradiction between cleaning and washing the windows, and 'yet' is used to show a contrast or unexpected result, which is not suitable in this context where both actions are necessary.

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