The nitrogen fixation step is very necessary since it is allows nitrogen to be used by living organism. In this step nitrogen in the atmosphere is being converted into ammonia or other nitrogen compound that can be used by organisms.
Answer:
c
Explanation:
when the weight of the object is greater than the buoyant force sinking is occurred.
<u>Answer:</u>
<em>10 is the answer.</em>
<em></em>
<u>Explanation:</u>
Balancing is making the number of atoms of each element same on both the sides (reactant and product side).
To find the number of atoms of each element we multiply coefficient × subscript
For example 
contains
5 × 1 = 5 , Ca atoms and
5 × 2 = 10, Cl atoms
If there is a bracket in the chemical formula
For example 
we multiply coefficient × subscript × number outside the bracket.......... to find the number of atoms (Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )
So 3 × 3 = 9, Ca atoms
3 × 1 × 2 = 6, P atoms
3 × 4 × 2 = 24, O atoms are present.
Product side contains 
2, K
2, Cl
6, O
So totally 2 + 2 + 6 = 10 atoms present on the product side
Hey there!
I believe the answer you are looking for is D.
If i am incorrect, I am very sorry. I would love any feedback!
Have a nice day and Happy Halloween!
Answer: mercury
Explanation: I looked up the answer to your question.
