One thing airlines can do to reduce engine emissions that lead to climate change is
A) Improve the efficiency of aircraft
B) Use alternative fuel sources
C) Limit flying to certain altitudes to reduce con-trails
D) A and B are correct, C is not
E) A, B & C are correct

Question

Quizplus · Accepted Answer

Improving the efficiency of aircraft (A), using alternative fuel sources (B), and limiting flying to certain altitudes to reduce con-trails (C) are all effective actions airlines can take to reduce engine emissions and mitigate climate change. Therefore, option E is the best choice.

One Thing Airlines Can Do to Reduce Engine Emissions That