Practice problem need help with it please

The graph shows a demand curve. which most likely accounts for the changes shown on the demand curve?

What was the social class pyramid during the civil war?

The red arrow shows the direction that wind from the south pole would travel if earth were not spinning. the wind's destination is at point a. because earth is spinning in the direction shown by the blue arrow, the coriolis effect will cause the wind to terminate closest to which point?