Which Statement About Bird Flight Is True

question 24

Multiple Choice

Which statement about bird flight is true?

• A)Birds must be within a thermal in order to fly.
• B)Small birds such as sparrows spend most of their time soaring.
• C)Bird wings are airfoils that cause air to flow faster under the wing than over the wing.
• D)In order for birds to stay in the air, lift must balance gravity.

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