Question

Which of the following statements about air is TRUE?
A.
Air is not a source of resistance.
B.
Air has mass, but not inertia.
C.
Air is not affected by human movement.
D.
None of these statements are true.

Answer 1

Answer:

D is the correct answer

Answer 2

Answer:

D.  None of these statements are true.

Explanation:

• Human movement in an indoor environment has been shown to affect dynamic airflow in previous research.

• Air resistance, on the other hand, is determined only by the density of the air, the shape of the item, and its velocity.

• Collisions of the object's leading surface with air molecules cause air resistance. Air resistance refers to the forces that oppose an object's relative motion as it travels through the air.