Select all that apply The demand curve for a normal good is downward sloping because Multiple select question. when consumers purchase substitutes, the quantity demanded of the good falls. when consumers purchase substitutes, the quantity demanded of the good rises. the benefit of consuming more of a good rises with each additional unit, so the price consumers are willing and able to pay also falls with increased consumption. as prices rise, the purchasing power of each dollar earned falls, and consumers are willing and able to buy more of a good. as prices rise, the purchasing power of each dollar earned falls, and consumers are willing and able to buy less of a good. the benefit of consuming more of a good falls with each additional unit, so the price consumers are willing and able to pay also falls with increased consumption