When a bird doubles its weight, how much do its wings grow?
A) They more than double in surface area.
B) They double in surface area.
C) They grow but do not double in surface area.

Question

Quizplus · Accepted Answer

When a bird doubles its weight, it needs larger wings to be able to fly. The wings need to generate more lift to carry the increased weight, which means that the surface area of the wings must increase more than double. This is because lift is proportional to the surface area of the wings. Therefore, the best choice is A, the wings more than double in surface area.

When a Bird Doubles Its Weight, How Much Do Its