问题详情

From the passage we know that ammonium nitrate is a kind of ______.
A．natural gas, which can easily catch fire
B．fertilizer, which can"t be stored in a great quantity
C．poisonous substance, which can"t be used in overcrowded areas
D．fuel, which is stored in large tanks请帮忙给出正确答案和分析，谢谢！