Question

select the correct answer.
arnold is concerned about his impact on the environment. currently he drives a car that gets only 12 miles per gallon of gas. which of the following actions would be the most effective to lessen his environmental impact?
a. driving at a higher rate of speed
b. switching to a car that gets 30 miles per gallon
c. purchasing higher octane gas
d. traveling by plane

Explanation:

To determine the most effective action to lessen environmental impact, we analyze each option:

• Option A: Driving at a higher speed typically increases fuel consumption (lower miles per gallon), so it would increase environmental impact.
• Option B: Switching to a car with 30 miles per gallon (compared to 12) means more miles per gallon, so less fuel is used for the same distance, reducing environmental impact (e.g., less CO₂ emissions from burning less gas).
• Option C: Higher octane gas doesn't improve fuel efficiency; it's for engine performance in some cars, so it won't reduce environmental impact related to fuel use.
• Option D: Traveling by plane has much higher carbon emissions per passenger-mile than driving a car, so it would increase environmental impact.

So, switching to a more fuel - efficient car (Option B) is the most effective.

Answer:

B. switching to a car that gets 30 miles per gallon