Answer: C.) Nitrogen-fixing bacteria in the soil
Step-by-step explanation: "Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia. Nitrifying bacteria convert ammonia to nitrites or nitrates. Ammonia, nitrites, and nitrates are all fixed nitrogen and can be absorbed by plants."-https://www.Khanacademy.org/
all credit to https://www.Khanacademy.org/
At first I read it wrong and I put D, but I read it again and it was actually C. Sorry
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30x² - 5 monomial
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K = 2 is a linear equation
Let number of books by astrid's = x
Out of x , 84% are fiction.
So, Number of non fictional books = x - 
= 
→Ratio of number of books to fictional books
⇒[Dividing numerator and denominator by 4.]
→Out of 25 books by astrid 21 are fictional.
→ Number of fictional books by astrid = 
Answer: 81 people attended
Explanation:
Number of adults = 988 / 26 = 38
Number of students = 731 / 17 = 43
Total attendees: 38 + 43 = 81
