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Glass
I wonder who first discovered glass. This commodity has been a part of civilization from the very beginning. Imagine a world without glass! How dark and dismal it would be. No windows, corrective lenses, telescopes, microscopes, cameras, sparkly drinking containers or mirrors. Life would not be the same without this wonderful discovery. Thank you, whoever found glass!
Glass is not an element, but a combination of several elements. It is a hard, brittle, transparent solid material composed mainly of silica, with additives to change the character of the glass. Common additives are soda, lime, lead, and boron. Each additive changes the properties of the final product. Soda and lime are the most common additives, accounting for about 90% of glass production. Adding lead increases reflectivity, causing the glass to "sparkle." The addition of boron changes the thermal and electrical properties of glass, allowing cookware that can be used in the oven without shattering.
What statement is a fact stated in the article?
- A. Glass isn't an element, but a combination of several elements.
- B. Glass is the most important material in modern technology.
- C. Glass can only be used in decorative items.
- D. Glass is naturally occurring and needs no processing.
Correct Answer: A
Rationale: The correct statement in the article is that 'Glass isn't an element, but a combination of several elements.' This fact is clearly mentioned in the passage, highlighting that glass is composed of various elements such as silica, soda, lime, lead, and boron, and it is not a standalone element. The other options are incorrect based on the information provided in the passage. Glass is indeed an essential material in modern technology, has various uses beyond decorative items, and is not naturally occurring but requires processing to obtain its desired properties.
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Glass
I wonder who first discovered glass. This commodity has been a part of civilization from the very beginning. Imagine a world without glass! How dark and dismal it would be. No windows, corrective lenses, telescopes, microscopes, cameras, sparkly drinking containers or mirrors. Life would not be the same without this wonderful discovery. Thank you, whoever found glass!
Glass is not an element, but a combination of several elements. It is a hard, brittle, transparent solid material composed mainly of silica, with additives to change the character of the glass. Common additives are soda, lime, lead, and boron. Each additive changes the properties of the final product. Soda and lime are the most common additives, accounting for about 90% of glass production. Adding lead increases reflectivity, causing the glass to "sparkle." The addition of boron changes the thermal and electrical properties of glass, allowing cookware that can be used in the oven without shattering.
What is the definition of the term 'brittle'?
- A. Flexible and resilient
- B. Easily broken
- C. Strong and durable
- D. Thick and heavy
Correct Answer: B
Rationale: The correct definition of 'brittle' is 'Easily broken,' making choice B the correct answer. Brittle materials are prone to breaking or shattering when subjected to stress, lacking flexibility and resilience. In the context of the passage, glass is described as brittle, indicating its tendency to break easily when under pressure.
Blood Pressure Regulators
The body is composed of systems that have evolved and diversified in order to maintain the natural functions and processes they regulate. One such system that has these regulators is the bodyĆ¢Ä‚¬Ä„¢s cardiovascular system. The bodyĆ¢Ä‚¬Ä„¢s pump, which regulates the flow of vitally needed oxygen to all cells of the body, as well as the discard of carbon dioxide and other waste products, is the heart.
Because blood pressure varies at different points within the body, differing components are needed to keep the bodyĆ¢Ä‚¬Ä„¢s blood pressure regulated. Three of the basic components are baroreceptors, chemoreceptors, and the kidneys.
Baroreceptors are stretch receptors composed of fine branching nerve endings and are contained along the walls of the arteries near the heart and in other areas of the body as well. Impulses are related to this stretching along the arterial walls, which causes these baroreceptors to send out even more impulses to the heart, arteries, and veins, causing the blood pressure to go either up or down.
Chemoreceptors are located along the walls of the arteries and monitor changes in oxygen level, carbon dioxide, and pH. Just think! A fall in oxygen causes receptors to send impulses to raise the blood pressure.
The kidneys play a role in regulating blood pressure by absorbing salts and water and removing wastes. Hormones secreted by the adrenal cortex cause the kidney to keep or let go of any salt and water. This has an influence on blood volume and consequently on blood pressure.
What is the meaning of the word 'evolved' in the first paragraph?
- A. To spread
- B. To gradually develop
- C. To revolve
- D. To shift
Correct Answer: B
Rationale: The correct answer is B: 'To gradually develop.' In the context of the paragraph, 'evolved' refers to the natural progression and development of the body's systems over time. The word 'evolved' signifies a process of gradual advancement and adaptation, which aligns with the concept of the systems developing to maintain natural functions. The other choices do not accurately reflect the intended meaning of 'evolved' in this context.
What effect does your voice have on others? Does it persuade or irritate, attract or repel? One of
the worst qualities is harshness. If you ever get the feeling that people are uncomfortable when you speak, it may be that your harsh tones are jarring their eardrums. Your voice will sound
unpleasant if it is shrill, grating, hard, piercing, brassy, to loud, or too nasal. Harsh voice qualities usually come from too much tension in the throat and jaw. Tension tightens muscles and blocks the relaxed voice tones essential to a pleasing impression. Because tension occurs in higher pitched voices, women tend to have shriller voices than men, which usually makes them
less desirable public speakers, newscasters, or political candidates.
What is the main idea presented in this paragraph?
- A. Some men possess harsh voices.
- B. Harsh voices are often associated with relaxed individuals.
- C. Women are perceived as less appealing political candidates due to their shriller voices.
- D. Not everyone is bothered by a harsh voice.
Correct Answer: C
Rationale: The correct answer is C. The paragraph discusses how women tend to have shriller voices than men, making them less desirable as public speakers, newscasters, or political candidates. It explains that harsh voice qualities usually stem from tension in the throat and jaw, more prevalent in higher-pitched voices like those of women. This suggests that women may face challenges in certain professions due to voice characteristics, impacting their perception as political candidates.
Let's Go to the Circus
Everyone loves a circus! The bright lights, fanciful costumes, and fierce wild animals delight and entertain folks of all ages. The circus calls to the child in each one of us. Ernest Hemingway wrote that it "is the only ageless delight that you can buy for money..."
"Circus" is a magic word inspiring all sorts of exciting, colorful images. It's a theater of mind-boggling feats, elephants thundering around the rings, horses dancing, clowns cavorting and the sequins glittering under the lights.
There are historical references to animal displays and athletic competitions from the earliest days of civilization. The Romans were famous for their extravaganzas in the Coliseum. The shows we see today cannot compare to those great spectacles, but all who go to a circus enjoy the experience. It allows us all to be a child again and watch in awe as the athletes perform on the high wire or control the savage beasts in the center ring.
What seems to be the author's motive for writing the paragraph?
- A. Provide historical facts that are interesting to know.
- B. Berate the reader for not going to the circus.
- C. Encourage people to attend a circus.
- D. Recover the child-like awe for the reader.
Correct Answer: D
Rationale: The passage emphasizes how the circus 'calls to the child in each one of us' and describes awe-inspiring performances like 'thundering elephants' and 'glittering sequins.' These vivid descriptions aim to evoke a sense of wonder, reminding readers of the magic and excitement associated with childhood. Thus, the author's motive is to rekindle this childlike awe, rather than providing historical facts, scolding the reader, or promoting attendance at a circus.
ELECTORAL COLLEGE
The Electoral College has nothing to do with college and contains no students. The Electoral College consists of votes that each state acquires based on the number of representatives it has in Congress. Each state has two electoral votes because each state has two senators. The remaining electoral votes are determined by the number of Congressmen, the number of which is based on the population of the state established by the Census taken each decade. During the presidential election, most states cast all their electoral votes for the candidate who wins the popular vote in that state. It's all very confusing, but the founding fathers know what they were doing. Downloaded by Abdul Hamid (a.ahamid2181@gmail.com) lOMoARcPSD|10672023 HESI A2 V2 Grammar, Vocab, Reading, & Math Questions with Answers). By having and using the Electoral College candidates' campaign in every state, but just because they win the popular vote across the country doesn't mean they will always win the election. Case in point, in election 2000, Al Gore won the popular vote across the country, but George W. Bush won more electoral votes. Therefore, he became our 43rd president.
The author's reason for writing this piece seems to be to:
- A. Entertain the reader with anecdotes
- B. Persuade the reader to support a specific candidate
- C. Teach the reader
- D. Criticize the electoral process
Correct Answer: C
Rationale: The correct answer is C. The passage aims to educate the reader about the Electoral College system and its functioning. It provides factual information about how the Electoral College operates, including the allocation of electoral votes based on a state's representation in Congress. There is no indication in the passage that the author's intention was to entertain, persuade, or criticize. By clarifying the purpose of the Electoral College and how it impacts presidential elections, the author is primarily focused on teaching the reader about this aspect of the political process.