Which of these activities can reduce the need for mining of metal ores? a. buying recycled paper b. recycling electronics c. composting food scraps d. reusing shopping bags

I would assume that the answer would be B because all of the other answers have nothing to do with metals and answer b would make sense because electronics are composed of many types of metal and recycling them would cause the mining of such metals to be less.

C) to ensure each new cell has an exact copy of the dna