which of the 4 is the answer
I apologize, but your question is not clear. Could you please provide more context or specify what the "4" refers to?
nitrogen gas
ammonia
nitrites
nitrates
I'm sorry, but your question is incomplete. It seems you have provided 4 options, but there is no context or question to determine which one is the answer. Can you please provide more information or specify what you are looking for?
living organisms can incorporate______ into their metabolism
Living organisms can incorporate all four options - nitrogen gas, ammonia, nitrites, and nitrates - into their metabolism.
which of the 4 is correct
All four options - nitrogen gas, ammonia, nitrites, and nitrates - can be incorporated into the metabolism of living organisms. The specific form of nitrogen that is incorporated depends on the organism and its metabolic processes.
pick 1
If I have to pick only one option from the given list, it would be ammonia. Ammonia is commonly utilized by living organisms for metabolic processes and is an important source of nitrogen for many biological systems.
Usable forms of nitrogen can intentionally be increased in the soil by
1. planting more trees.
2. planting fewer beans.
3. lightning.
4. allowing organic matter to decompose.