what does the author suggest about the earths tilt in the passage on daylight savings time

HESI A2

HESI A2 Reading Comprehension Practice Test

1. What does the author suggest about the Earth's tilt in the passage on Daylight Savings Time?

A. The Earth's tilt has no effect on the seasons.
B. The Earth's tilt affects the amount of sunlight different areas receive.
C. The Earth's tilt is constant throughout the year.
D. The Earth's tilt changes dramatically during the seasons.

Correct answer: B

Rationale: The author suggests that the Earth's tilt affects the amount of sunlight different areas receive, influencing the seasons. The passage explains how the tilt of the Earth towards the sun results in different regions receiving varying amounts of sunlight, leading to the existence of seasons. This tilt causes regions near the equator to receive more sunlight consistently, while the Poles experience periods of constant darkness or sunlight, creating different seasons. Choices A, C, and D are incorrect because the passage clearly states that the Earth's tilt influences sunlight distribution and subsequently impacts the seasons.

2. What is the best summary of this passage?

A. The heart regulates oxygen flow and waste disposal, with the kidneys aiding in salt and water absorption.
B. The cardiovascular system regulates blood pressure through baroreceptors, chemoreceptors, and the kidneys.
C. Baroreceptors send impulses to regulate blood pressure by affecting the heart, arteries, and veins.
D. Chemoreceptors monitor oxygen levels to impact blood pressure.

Correct answer: B

Rationale: The correct answer is B because it provides a comprehensive summary of the passage, explaining how the cardiovascular system regulates blood pressure through baroreceptors, chemoreceptors, and the kidneys. Choice A is incorrect as it only focuses on the heart and kidneys without mentioning the broader cardiovascular system. Choice C is incorrect as it solely emphasizes the role of baroreceptors in regulating blood pressure. Choice D is incorrect as it oversimplifies the role of chemoreceptors in monitoring oxygen levels without mentioning their impact on blood pressure regulation.

3. What is the meaning of the word 'pathogens' as it is used in the first paragraph?

A. diseases
B. vaccines
C. disease-causing substances
D. foods

Correct answer: C

Rationale: In the context provided, 'pathogens' refers to disease-causing substances such as bacteria and viruses. These microorganisms can contaminate food and lead to foodborne illnesses. Choice A ('diseases') is incorrect as pathogens themselves cause diseases but are not diseases. Choice B ('vaccines') is incorrect as vaccines are used to prevent diseases caused by pathogens. Choice D ('foods') is incorrect as pathogens are not foods, but rather contaminants that can be found in food.

4. What is implied about the rainforest's role in global climate?

A. The rainforest has little impact on the climate.
B. The rainforest plays a crucial role in regulating the climate.
C. The rainforest is mainly important for biodiversity.
D. The rainforest's destruction has no global consequences.

Correct answer: B

Rationale: The rainforest plays a crucial role in regulating the global climate by absorbing carbon dioxide. The extract highlights the fact that trees take in carbon dioxide and give off oxygen. When trees are cut down, the amount of carbon dioxide increases, contributing to global warming. This emphasizes the significant impact of rainforests on the climate. Choice A is incorrect as the extract clearly states the importance of rainforests in absorbing carbon dioxide. Choice C, while true, is not directly related to the implied role of rainforests in regulating the climate. Choice D is also incorrect as the destruction of rainforests does have global consequences, such as contributing to global warming.

5. The passage lists all of these benefits of omega-3s EXCEPT ___________.

A. Reduced blood pressure
B. Less risk of diabetes
C. Improved memory
D. Alleviated depression

Correct answer: B

Rationale: The passage mentions reduced blood pressure, improved memory, and alleviated depression as potential benefits of omega-3s but does not mention a reduced risk of diabetes.