The kale fad starts to fade as people realize it is just bitter lettuce. At the same time advances in agriculture reduce the cost of growing all...

The kale fad starts to fade as people realize it is just bitter lettuce. At the same time advances in agriculture reduce the cost of growing all leafy vegetables (including kale). If these two things happen at the same time we would expect the market price of kale to fall and the equilibrium quantity to fall as well. What happens when you shift the curves for each parts of the question by different amounts?