Answer:
total amount of nitrogen added to soil per square meter is 457.2 mg
Step-by-step explanation:
given data
average rainfall = 36 inches = 914.4 mm
in 1 mm rainfall total amount of water stored in squre mtr = 1 liter
therefore in 914.4 mm rainfall, total water stored = 914.4 ltr
rainfall consist of 0.5 ppm = 0.5 mg/ltr
1 ltr consist N2 = 0.5 mg
914.4 ltr consist N2 = 0.5 *914.4 mg = 457.2 mg
total amount of nitrogen added to soil per square meter is 457.2 mg