Why is the water solubility of different nitrogen species of importance to agriculturalists? What processes in the nitrogen cycle are LEAST beneficial to agricultural production of crops?
What will be an ideal response?
Answer: If a particular nitrogen species is highly water soluble, it will wash away during precipitation. The crops will then not receive the fertilizer as intended, and runoff will negatively affect any surrounding bodies of water by providing a sudden increase in nitrogen, perhaps leading to harmful algal blooms. Nitrification and denitrification are the two least beneficial processes in the nitrogen cycle because they result in a loss of biologically available nitrogen. Nitrification produces nitrate, which is highly soluble and does NOT bind to soil particles very well and is thus washed rapidly out of the soil. Denitrification is the conversion of nitrate to nitrogen gas, which also removes nitrogen from the soil. Loss of nitrogen from the soil means that less is available to the crops, which could potentially limit production.
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a. synovial only b. fibrous only c. cartilaginous only d. all of the choices
A small tear in a ligament is called a
1.strain. 2.fracture. 3.bruise. 4.dislocation. 5.sprain.
Overall, water movement from the soil, through plant tissues, and finally to the atmosphere through transpiration, is driven by a gradient of
A) water potential. B) osmotic pressure. C) water temperature. D) specific leaf area.
A mature ovary, specialized as a vessel that houses and protects seeds, is a
A) fruit. B) ovule. C) cotyledon. D) seed coat.