Q. Which country is the world’s largest consumer of nitrogenous fertilizers?
Answer: China
Notes: China ranks as the world's largest user of nitrogenous fertilizers. This is primarily due to its large agriculture sector and emphasis on high crop yields, which heavily rely on fertilizers. In addition, China's population, the largest in the world, also contributes to high food demand and thus more agricultural activity. These factors combined result in China's massive usage of nitrogenous fertilizers.