14. Dried leaves can be classified as one of the
biodegradable materials that eventually decompose, adding
nutrients to the soil. These leaves fall from a tree and slowly
reach the ground. What can you infer on the motion of the
dried leaves from a tree to the ground?

A. The dried leaves naturally fall slowly on the
ground.
B. The friction of the air and the leaves affects its
motion
C. The air resistance acts against the motion of the
dried leaves
D. The height of the tree affects the movement of
the dried leaves from a tree to the ground.

15. How is the gravitational force affected by distance?

A. When objects are closer together, the
gravitational force is lesser.
B. The lesser the distance, the lesser the
gravitational pull between them.
C. The more the distant the body from the earth,
the greater the gravitational attraction is.
D. The more the distant the body from the earth,
the less the gravitational attraction is.​