Question 1 At the start of the simulation notice what the temperature is in the thermome- ter on the left. As the sunlig

[answerhappygod]

Question 1
At the start of the simulation notice what the temperature is in the thermome-
ter on the left. As the sunlight photons (in yellow) come in they are absorbed by
the ground and then infrared photons (n red) are reradiated. The temperature
eventually settles down to some average. On the right hand side you can get information on what the greenhouse gas concentrations are today.
What is the average temperature now as given in the simulation? What about
in the year 1750 (before the industrial revolution)? What about during the last
ice age? You may have to wait a minute or so for the temperature to respond
to your adjustments and settle down to a new value.
Question 2
Observe some of the sunlight photons and some of the infrared photons in the
simulation for a few minutes. What can you say about their motion? Does this
make sense? Explain why or why not.
Question 3
Reset the simulation by pressing the "Reset All' button.
Under Options on the bottom right there is a setting that allows you to control
the number of clouds. How does the temperature depend on the number of
clouds?
Do you think the temperature would be higher or lower on a cloudy day com-
pared to a clear day? How about on a cloudy night as compared to a cloudless
night? How does your analysis change if we are talking about the night time
instead of the daytime?