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Many countries are deliberating whether they should start taxing the aviation industry for its fuel usage as a possible way to motivate it to reduce the emissions of greenhouse gases. The problem is rather severe. With the increasing affordability of airline tickets, it is estimated that by 2050 the aviation industry will be one of the key contributors to the CO2 emissions worldwide. Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment because 
Which of the following best completes the passage above?
  • a)
    several gases emitted by the aircraft are not released by many vehicles on ground.
  • b)
    various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.
  • c)
    the effect of a given amount of emission is greater at higher altitudes.
  • d)
    technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.
  • e)
    innovations in technology have made aircraft engines more fuel efficient.
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Many countries are deliberating whether they should start taxing the a...
The sentence "Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment because" suggests that there is a reason why the emissions from aircraft are particularly harmful to the environment. To complete the passage, we need to provide an explanation for this.
Option (C) "the effect of a given amount of emission is greater at higher altitudes" provides a logical continuation of the sentence. This statement suggests that emissions from aircraft at higher altitudes have a greater impact on the environment compared to emissions from vehicles on the ground. The higher altitude allows the emissions to disperse more widely and stay in the atmosphere for longer periods, potentially causing more damage.
Therefore, the best completion for the passage is option (C) "the effect of a given amount of emission is greater at higher altitudes."
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Many countries are deliberating whether they should start taxing the aviation industry for its fuel usage as a possible way to motivate it to reduce the emissions of greenhouse gases. The problem is rather severe. With the increasing affordability of airline tickets, it is estimated that by 2050 the aviation industry will be one of the key contributors to the CO2 emissions worldwide. Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about Many countries are deliberating whether they should start taxing the aviation industry for its fuel usage as a possible way to motivate it to reduce the emissions of greenhouse gases. The problem is rather severe. With the increasing affordability of airline tickets, it is estimated that by 2050 the aviation industry will be one of the key contributors to the CO2 emissions worldwide. Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Many countries are deliberating whether they should start taxing the aviation industry for its fuel usage as a possible way to motivate it to reduce the emissions of greenhouse gases. The problem is rather severe. With the increasing affordability of airline tickets, it is estimated that by 2050 the aviation industry will be one of the key contributors to the CO2 emissions worldwide. Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer?.
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Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. 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Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Many countries are deliberating whether they should start taxing the aviation industry for its fuel usage as a possible way to motivate it to reduce the emissions of greenhouse gases. The problem is rather severe. With the increasing affordability of airline tickets, it is estimated that by 2050 the aviation industry will be one of the key contributors to the CO2 emissions worldwide. Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. 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Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. 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Also, CO2 and the other gases emitted by aircraft could be even more damaging to the environment becauseWhich of the following best completes the passage above?a)several gases emitted by the aircraft are not released by many vehicles on ground.b)various airlines are increasingly realizing economies of scale and hence planning to further slash down the ticket prices.c)the effect of a given amount of emission is greater at higher altitudes.d)technological developments in the automobile industry are likely to significantly reduce the particulate emissions from several land-based vehicles but not from the kind of aircraft used in the aviation industry.e)innovations in technology have made aircraft engines more fuel efficient.Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice GMAT tests.
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