In an effort to reduce municipal solid waste, some communities require customers to pay for garbage collection according to the amount of garbage they generate, known as unit pricing. The figure below shows the effects of unit pricing in San Jose, California, on garbage sent to landfills, on wastes diverted through recycling, and on separation of yard wastes. How did unit pricing affect the amount of garbage sent to landfills? How did unit pricing affect the quantity of materials recycled? Of yards wastes collected?