Answer: c
Explanation: Plants and animals need nitrogen to make proteins but they cannot take it in from the air. Because nitrogen is unreactive as a gas, it has to be transformed into a new molecule. When bacteria in the soil takes nitrogen from the air, it becomes nitrates. Finally, it can move through the food chain in this form.
The answer to your question should be a and c hope this helps
Sedimentary and metamorphic rocks?
Answer: i know it not the answer
Explanation:
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i hope you find the answer to your question
