2 Problems Down Here?

Question

PROBLEM #1:
Desert Sand is very hot in the day and very cool at night. What does this tell you about its specific heat?

PROBLEM #2:
What determines whether an object at a given time is a net absorber or a net emitter? Why?

When you answer this problems, please, specify which answer is for what.

Answer 1

1)Since it changes temp a lot and very quickly, it has a low specific heat

2) If an objects temperature has risen, it has absorbed heat. If the temp as fallen, it has emitted heat. The gain of heat(energy) results in a higher temp. The loss of heat results in a lower temp

Answer 2

Hard question