Exhaust Released from a Combustion Engine is Harmful when Breathed in Significant Quantities.

Question: Exhaust released from a combustion engine is harmful when breathed in significant quantities. Since exhaust poses a particular danger to health, Congress needs to place regulations on the use of motorized vehicles and lawn care tools.

Which of the following, if true, does the most to strengthen the given argument?

1. In heavily populated cities where motorized vehicles are most common, the level of exhaust often exceeds maximum safety levels.
2. The health risks associated with exhaust are much less severe than those associated with an equivalent amount of second hand cigarette smoke.
3. The most commonly used mode of transportation in the population over which Congress has authority is bicycles.
4. Coal-burning locomotives produce a much deadlier exhaust than do combustion engines.
5. If Congress were to ban lawn care tools, there would be no significant benefit to the health of the population over which Congress has authority.

Exhaust released from a combustion engine is harmful when breathed in significant quantities- is a GMAT Critical question. This particular GMAT Critical Reasoning topic has been taken from the book ‘GMAT Official Guide verbal review 2018’. This particular topic is the Assumption and conclusion type of question. For this type, the candidates need to provide an assumption which supports the conclusion provided in the passage. GMAT critical reasoning tests the logical and analytical skills of the candidates. Critical reasoning in GMAT requires candidates to find the strengths and weaknesses of the argument, or find the logical flaw in the argument. The GMAT CR section contains 10 -13 GMAT critical reasoning questions out of 36 GMAT verbal questions.

Answer: A
Explanation:

The statement states - Exhaust released from a combustion engine is harmful when breathed in significant quantities. Since exhaust poses a particular danger to health, Congress needs to place regulations on the use of motorized vehicles and lawn care tools.

Which of the following, if true, does the most to strengthen the given argument?

1. It is correct. A reason here is that it talks about the use of motorbikes is more in a big city to regulating its use will lead to decrease in pollution.
2. This argument is technically not relevant since it is not strengthening the conclusion.
3. This argument has no relevance to the question asked.
4. This argument is talking about coal-burning locomotives which are not even mentioned in the passage. This is a wrong answer.
5. This argument talks about lawn tools and this option is somehow weakening the conclusion. This cannot be the correct answer.

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