Nursing Elites

1. The mixture of gases surrounding a planet is referred to as its ______.

• A. Atmosphere
• B. Stratosphere
• C. Biosphere
• D. Troposphere

Correct answer: A

Rationale: The mixture of gases surrounding a planet is referred to as its atmosphere. The atmosphere plays a crucial role in supporting life on Earth by providing oxygen, regulating carbon dioxide levels, and shielding the planet from harmful radiation. While the stratosphere, troposphere, and other layers are part of the atmosphere, the term 'atmosphere' encompasses the entire gaseous envelope surrounding a planet. The stratosphere, troposphere, mesosphere, thermosphere, and exosphere are specific layers within the atmosphere, each with distinct characteristics and functions.

2. Which mineral helps maintain fluid balance in the body?

• A. Potassium
• B. Cobalt
• C. Chromium
• D. Sulfur

Correct answer: A

Rationale: Potassium is the mineral that helps maintain fluid balance in the body. It plays a crucial role in regulating the amount of fluid inside and outside the body's cells, thereby helping to maintain proper hydration levels. Potassium works in conjunction with sodium to regulate fluid balance and is essential for proper muscle function, nerve transmission, and heart health. Cobalt, chromium, and sulfur do not play significant roles in maintaining fluid balance in the body, making them incorrect choices for this question.

3. What is implied about Benjamin Franklin in the passage on Daylight Savings Time?

• A. Benjamin Franklin opposed the idea of Daylight Savings Time.
• B. Benjamin Franklin was the first to implement Daylight Savings Time.
• C. Benjamin Franklin proposed the idea of Daylight Savings Time.
• D. Benjamin Franklin had no role in Daylight Savings Time.

Correct answer: C

Rationale: The correct answer is C. The passage states that Benjamin Franklin first suggested the introduction of Daylight Savings Time in the 18th century. However, the first serious proposal came in 1907 from William Willet. Franklin's idea was not implemented during his lifetime, but he did propose the concept. Therefore, choices A, B, and D are incorrect. Choice A is incorrect because Franklin did not oppose the idea. Choice B is incorrect because he was not the first to implement it. Choice D is incorrect because he did have a role in proposing the idea.

4. What does the term 'viscous' mean?

• A. Thick and sticky
• B. Slimy
• C. Watery
• D. Dry

Correct answer: A

Rationale: The correct answer is A: 'Thick and sticky.' Viscous describes a substance that is thick and sticky, resisting flow easily. Choices B, C, and D are incorrect. 'Slimy' implies a slippery, gooey texture; 'Watery' describes a substance with a thin, fluid consistency; and 'Dry' indicates the absence of moisture.

5. On what concept is Kelvin based?

• A. Freezing point
• B. Absolute zero
• C. Boiling point
• D. Evaporation point

Correct answer: B

Rationale: The correct answer is B: Absolute zero. Kelvin is based on the concept of absolute zero, which is the point where molecular movement ceases entirely. This temperature scale starts at absolute zero (0K), where theoretically no molecular movement occurs. Choices A, C, and D are incorrect because Kelvin is not based on the freezing point, boiling point, or evaporation point, but rather on the absolute absence of molecular motion.

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