By what means do humans remove nitrogen from the soil?
A) harvesting nitrogen-poor crops
B) leaching water-soluble nitrate ions from soil through irrigation
C) applying organic fertilizers to agricultural land
D) mining nitrogen-poor mineral deposits

Question

By what means do humans remove nitrogen from the soil? 
A) harvesting nitrogen-poor crops 
B) leaching water-soluble nitrate ions from soil through irrigation 
C) applying organic fertilizers to agricultural land 
D) mining nitrogen-poor mineral deposits

Quizplus · Accepted Answer

Leaching water-soluble nitrate ions from soil through irrigation is a method used to remove excess nitrogen from the soil. With this method, farmers apply water in generous amounts to the soil to dissolve the nitrates, which then get carried away with the excess water runoff. This process helps to prevent soil acidification and reduces the risk of nitrate pollution. However, this method requires careful management to avoid waterlogging or soil erosion.

By What Means Do Humans Remove Nitrogen from the Soil