Multiple choice Three crops that contribute maximum to global foodgrain production are wheat, rice and maize. rice, maize and sorghum. wheat, maize and sorghum. wheat, rice and barley. Reveal answer Fill a bubble to check yourself A Correct answer Explanation Three crops that contribute maximum to global foodgrain production are wheat, rice and maize. They are grown maximally as they form one of the staple diets of largest population of the world.