When a comet passes near the sun, it experiences a force that causes it to change direction. what causes this force?
a.
the sun's electric charge
b.
the sun's magnetism
c.
the sun's temperature
d.
the sun's mass

D. the Sun's mass

Explanation:

Every object with mass has a gravitational field around it. Any other object in this field is affected by that object's gravity and pulled toward it.

When the comet comes close to the Sun, it is affected by the Sun's gravitational field and pulled toward the Sun. This causes the comet's path to curve. Because the Sun's mass produces its gravitational field, it is the Sun's mass that causes the force that acts on the comet.