Question

1. which form of nitrogen is preferred by annual plants? a. ammonium b. nitrate c. urea d. nitrite 4. what is the impact of synthetic nitrogen on soil health? a. it improves soil structure b. it destroys soil biology c. it enhances nutrient uptake d. it has no effect 5. which historical process is associated with synthetic nitrogen production? a. haber - bosch process b. nitrogen - fixing c. photosynthesis d. ammonification 6. how does ammonium affect soil ph? a. it raises the ph b. it has no effect c. it lowers the ph d. it stabilizes the ph

Explanation:

1. Annual plants generally prefer nitrate as a nitrogen source as it is more readily available and less toxic compared to other forms under most conditions.
2. Synthetic nitrogen can disrupt the balance of soil microorganisms and biological processes, thus destroying soil biology.
3. The Haber - Bosch process is the main industrial method for synthetic nitrogen production from atmospheric nitrogen and hydrogen.
4. Ammonium can be converted to nitrate by soil bacteria in a process that releases hydrogen ions, thus lowering soil pH.[SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][SSE Completed, Client Connection Error][LLM SSE On Failure]

Answer:

1. b. Nitrate
2. b. It destroys soil biology
3. a. Haber - Bosch process
4. c. It lowers the pH