Nursing Elites

1. Which additional information would be MOST relevant to the topic of the passage?

• A. A detailed history of the development of specific social media platforms.
• B. Studies on the psychological effects of prolonged social media use on teenagers.
• C. Statistics on the global economic impact of the social media industry.
• D. Technical explanations of the algorithms used by social media platforms.

Correct answer: B

Rationale: Studies on the psychological effects of social media use directly relate to the passage's concerns about mental health impacts, making it the most relevant information.

2. Which element is used in semiconductors like computer chips and solar panels?

• A. Germanium
• B. Silicon
• C. Gallium
• D. Arsenic

Correct answer: B

Rationale: Silicon's unique properties allow it to be manipulated to conduct or not conduct electricity, making it ideal for various electronic applications.

3. Muscle soreness after exercise is often caused by microscopic tears in muscle fibers. This is called

• A. Atrophy
• B. Hypertrophy
• C. Dom (Delayed Onset Muscle Soreness)
• D. Spasm

Correct answer: C

Rationale: Muscle soreness after exercise is commonly caused by microscopic tears in muscle fibers, leading to a condition known as Delayed Onset Muscle Soreness (DOMS). Atrophy refers to the shrinking of muscle due to inactivity or lack of use, which is not the cause of muscle soreness after exercise. Hypertrophy is the increase in muscle size through exercise, not related to muscle soreness. Spasm is a sudden, involuntary muscle contraction unrelated to the micro-tears that cause muscle soreness. Therefore, the correct answer is C, DOMS, as it specifically addresses the micro-tears in muscle fibers that result in post-exercise soreness.

4. What is the building block of DNA?

• A. Amino acid
• B. Nucleotide
• C. Nucleotide
• D. Fatty acid

Correct answer: B

Rationale: Rationale: - Amino acids are the building blocks of proteins, not DNA. - Nucleotide is the correct building block of DNA. A nucleotide consists of a sugar (deoxyribose in DNA), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). - The option "C) Nucleotide" is a duplicate of the correct answer "B) Nucleotide." - Fatty acids are not the building blocks of DNA; they are a type of lipid molecule.

5. What phenomenon occurs when a wave encounters a change in medium causing a change in its speed and direction?

• A. Refraction
• B. Reflection
• C. Diffraction
• D. Interference

Correct answer: a

Rationale: Refraction happens when a wave changes its speed and direction due to encountering a change in medium.

6. How is the density of a substance calculated?

• A. Mass / Volume
• B. Volume / Mass
• C. Mass x Volume
• D. None of the above

Correct answer: A

Rationale: Density is the mass per unit volume of a substance.

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