Question: (I) Name and describe the important processes involved in a global nitrogen cycle, and the factors that, at both microscopic and macroscopic levels, may influence

(I) Name and describe the important processes involved in a global nitrogen cycle, and the factors that, at both microscopic and macroscopic levels, may influence these processes (Module 10.1).

(II) The chemical reactions for industrial production of urea ( ), an important fertilizer in agriculture, are given below:

2NH3(g) + CO2(g) H2N-CO2-NH2+ (s) H2N-CO-NH2 + H2O

The nitrogen (N2) obtained in this process is from the atmosphere. An estimated production of urea worldwide is 200 million tonnes in 2018. Calculate how much N2 should be taken from the atmosphere. Will this activity cause significant modification to the chemical composition of the atmosphere? Why?

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