The following passage is titled "Where Do Old Satellites Go When They Die?" by NASA. Like every other machine, satellites do not last forever. Whether their job is to observe weather, measure greenhouse gases in the atmosphere, or point away from Earth to study the stars, eventually all satellites grow old, wear out, and die, just like old washing machines and vacuum cleaners. So what happens when a trusty satellite's time has come? These days there are two choices, depending on how high the satellite is. For the closer satellites, engineers will use its last bit of fuel to slow it down. That way, it will fall out of orbit and burn up in the atmosphere. The second choice is to send the satellite even farther away from Earth. It can take a lot of fuel for a satellite to slow down enough to fall back into the atmosphere. That is especially true if a satellite is in a very high orbit. For many of these high satellites, it takes less fuel to blast it farther into space than to send it back to Earth.
Which of the following statements expresses a main idea of the entire passage?
- A. When satellites stop working, they have to be moved from orbit.
- B. Satellites are sent to orbit Earth for many different purposes.
- C. After satellites are slowed down, they burn up in the atmosphere.
- D. Satellites are designed to work for only a limited amount of time.
Correct Answer & Rationale
Correct Answer: A
Option A effectively captures the main idea by emphasizing the necessity of relocating non-functional satellites, highlighting a critical aspect of their lifecycle. Option B, while relevant, only addresses the initial purpose of satellites rather than their entire operational journey. Option C discusses a specific consequence of satellites slowing down, which is too narrow to represent the overall theme. Option D mentions the limited lifespan of satellites but does not encompass the broader implications of their eventual decommissioning and the need for orbital management.
Option A effectively captures the main idea by emphasizing the necessity of relocating non-functional satellites, highlighting a critical aspect of their lifecycle. Option B, while relevant, only addresses the initial purpose of satellites rather than their entire operational journey. Option C discusses a specific consequence of satellites slowing down, which is too narrow to represent the overall theme. Option D mentions the limited lifespan of satellites but does not encompass the broader implications of their eventual decommissioning and the need for orbital management.
Other Related Questions
The following is an advertising slogan for a company that makes home security systems. "Are you secure enough to leave home?" The slogan makes use of which of the following techniques often used in advertising to attract the reader's attention?
- A. Substituting slang for more formal expression
- B. Making an unsubstantiated claim appealing to a sense of individuality
- C. Highlighting a benefit by using an exclamatory sentence
- D. Employing wordplay based on the use of double meanings
Correct Answer & Rationale
Correct Answer: D
The slogan "Are you secure enough to leave home?" employs wordplay through its use of double meanings, effectively engaging the reader. It prompts reflection on personal security while also suggesting a deeper emotional connection to safety and freedom. Option A is incorrect as the slogan does not use slang; it maintains a formal tone. Option B misrepresents the slogan's intent; it does not make an unsubstantiated claim but rather poses a thought-provoking question. Option C is also not applicable, as the slogan is not exclamatory and does not highlight a benefit in that manner. Thus, option D accurately captures the cleverness of the slogan's wording.
The slogan "Are you secure enough to leave home?" employs wordplay through its use of double meanings, effectively engaging the reader. It prompts reflection on personal security while also suggesting a deeper emotional connection to safety and freedom. Option A is incorrect as the slogan does not use slang; it maintains a formal tone. Option B misrepresents the slogan's intent; it does not make an unsubstantiated claim but rather poses a thought-provoking question. Option C is also not applicable, as the slogan is not exclamatory and does not highlight a benefit in that manner. Thus, option D accurately captures the cleverness of the slogan's wording.
Which of the following is a compound-complex sentence?
- A. I want to go on vacation with Sally to Mexico, Costa Rica, and Florida.
- B. Even though the sun was shining, my mother told me I could not go to the pool.
- C. Holly needs to go to the grocery store, but she does not have enough time to go there today.
- D. Since we like to go on roller coasters, we go all the time, but we have not been on that coaster yet.
Correct Answer & Rationale
Correct Answer: D
A compound-complex sentence contains at least two independent clauses and one or more dependent clauses. Option D meets this criterion, featuring the independent clauses "we go all the time" and "we have not been on that coaster yet," along with the dependent clause "Since we like to go on roller coasters." Option A is a simple sentence listing vacation destinations, lacking independent clauses. Option B contains one independent clause and one dependent clause, making it a complex sentence. Option C has two independent clauses joined by "but," classifying it as a compound sentence. Thus, only option D combines both elements required for a compound-complex sentence.
A compound-complex sentence contains at least two independent clauses and one or more dependent clauses. Option D meets this criterion, featuring the independent clauses "we go all the time" and "we have not been on that coaster yet," along with the dependent clause "Since we like to go on roller coasters." Option A is a simple sentence listing vacation destinations, lacking independent clauses. Option B contains one independent clause and one dependent clause, making it a complex sentence. Option C has two independent clauses joined by "but," classifying it as a compound sentence. Thus, only option D combines both elements required for a compound-complex sentence.
Which of the following statements is true?
- A. In sentence 1, the word "knew" is functioning as an adverb.
- B. In sentence 1, the word "knew" is functioning as a verb.
- C. In sentence 3, the word "really" is functioning as an adjective.
- D. In sentence 3, the word "really" is functioning as a noun.
Correct Answer & Rationale
Correct Answer: B
In sentence 1, "knew" serves as a verb, indicating an action or state of being related to knowledge. This aligns with its grammatical role as a past tense verb, which expresses what someone understood or was aware of. Option A is incorrect as "knew" cannot function as an adverb; adverbs modify verbs, adjectives, or other adverbs, not serve as the main verb in a sentence. Option C misinterprets "really," which typically acts as an adverb to modify verbs or adjectives, not as an adjective itself. Option D is also incorrect since "really" does not function as a noun; it does not represent a person, place, thing, or idea.
In sentence 1, "knew" serves as a verb, indicating an action or state of being related to knowledge. This aligns with its grammatical role as a past tense verb, which expresses what someone understood or was aware of. Option A is incorrect as "knew" cannot function as an adverb; adverbs modify verbs, adjectives, or other adverbs, not serve as the main verb in a sentence. Option C misinterprets "really," which typically acts as an adverb to modify verbs or adjectives, not as an adjective itself. Option D is also incorrect since "really" does not function as a noun; it does not represent a person, place, thing, or idea.
Which of the following parts of speech expresses emotion?
- A. A verb
- B. An interjection
- C. An adverb
- D. A pronoun
Correct Answer & Rationale
Correct Answer: B
Interjections are unique parts of speech specifically designed to express emotions or sudden feelings, such as joy, surprise, or frustration (e.g., "Wow!" or "Oh no!"). In contrast, verbs indicate actions or states of being but do not inherently express emotions. Adverbs modify verbs, adjectives, or other adverbs, providing context rather than emotion. Pronouns serve to replace nouns and do not convey feelings directly. Thus, interjections stand out as the only option that directly embodies emotional expression.
Interjections are unique parts of speech specifically designed to express emotions or sudden feelings, such as joy, surprise, or frustration (e.g., "Wow!" or "Oh no!"). In contrast, verbs indicate actions or states of being but do not inherently express emotions. Adverbs modify verbs, adjectives, or other adverbs, providing context rather than emotion. Pronouns serve to replace nouns and do not convey feelings directly. Thus, interjections stand out as the only option that directly embodies emotional expression.