Nursing Elites

1. Which property of a substance measures the amount of matter per unit volume?

• A. Density
• B. Mass
• C. Weight
• D. Volume

Correct answer: a

Rationale: Density is the property that measures the amount of matter (mass) per unit volume of a substance. It is calculated as mass divided by volume.

2. What is the main verb tense in the following sentence? "She had already left before I arrived."

• A. Present tense
• B. Past tense
• C. Future tense
• D. t perfect tense

Correct answer: D

Rationale: The verb "had left" is in the past perfect tense, indicating an action completed before another past action ("arrived").

3. Which orbital can hold a maximum of 8 electrons?

• A. s orbital
• B. p orbital
• C. d orbital
• D. f orbital

Correct answer: C

Rationale: d orbital - Each d orbital can hold a maximum of 2 electrons, and there are 5 d orbitals, totaling 10 possible electrons.

4. The energy absorbed during a chemical reaction is called:

• A. Kinetic energy
• B. Potential energy
• C. Heat energy
• D. Endothermic energy

Correct answer: D

Rationale: Endothermic means "inward heat," indicating energy is absorbed during the reaction.

5. Which of the following numbers is a perfect square?

• A. 10
• B. 12
• C. 15
• D. 16

Correct answer: D

Rationale: A perfect square is a number obtained by squaring an integer. 16 is the result of squaring 4 (4 x 4 = 16). The other answer choices are not the product of squaring any whole number.

6. What can be inferred about the water management systems in Petra?

• A. They were unreliable and contributed to the city's decline.
• B. They were simple and ineffective compared to modern systems.
• C. They were sophisticated and played a crucial role in Petra's survival.
• D. They were destroyed by explorers when Petra was rediscovered.

Correct answer: C

Rationale: The passage highlights the "elaborate" water systems, suggesting their complexity and importance.

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