What product was mentioned as example of a good with a lot of price volatility -- the price changes all the time? (6:48)

Suppose the price of oranges falls, so the government pays money to orange farmers to help them out. What would be the usual view of an economist regarding the government's decision (6:28)

Something like a change in weather will typically shift which of the curves on a crop's supply and demand graph? (5:29)