Asked by marlena oxendine on May 30, 2024
Verified
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
Nitrogen-poor Crops
Crop plants that grow in soils with low nitrogen content, often requiring additional nitrogenous fertilizers for optimum growth.
Leaching
The process by which soluble materials are washed out from soil or wastes, often leading to contamination of waterways.
Nitrate Ions
An anionic form of nitrogen (NO3-) found in soil and water, often resulting from agricultural runoff, and crucial to the nitrogen cycle.
- Explain human impact on biogeochemical cycles through activities such as agriculture, industrialization, and environmental management.
Verified Answer
ZK
Zybrea KnightJun 02, 2024
Final Answer :
B
Explanation :
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.
Learning Objectives
- Explain human impact on biogeochemical cycles through activities such as agriculture, industrialization, and environmental management.