Mechanical problems since they can be solved and have the second most deaths. I would have the plane go through at least 3 examinations before boarding then one passenger exam before takeoff.
Answer:
1. Developmental—focuses on teaching pre-education techniques.
Explanation:
Answer:
D. Cels
"A cel, short for celluloid, is a transparent sheet on which objects are drawn or painted for traditional, hand-drawn animation"
