Given the question: Answer the following question given this paragraph: Birds also have wings that function as an aerofoil . The surface of the aerofoil is curved to help the bird control and use the air currents to fly. Aerofoils are also found on the wings of airplanes. Q: Where are aerofoils found? Choices: - airplanes and plants - birds and busses - birds and cars - birds and airplanes A:
The answer is:
birds and airplanes