Which of the following is true concerning the balance between the solar energy absorbed and radiated by Earth?
 a.
 Earth’s atmosphere absorbs a larger fraction of total solar energy than it radiates.
 b.
 More than 90% of the solar energy that strikes Earth is absorbed.
 c.
 Earth’s surface is responsible for absorbing a larger fraction of energy than it radiates.
 d.
 None of the above.