Explanation:
nitrogen is converted from atmospheric nitrogen +N2) into usable forms ,such as NO2,- in a process known as fixation.
The correct answer is multiple sclerosis.
The MS or multiple sclerosis refers to a demyelinating disorder in which the insulating envelopes of the nervous tissues in the spinal cord and the brain get destructed.
This destruction disturbs the tendency of the components of the nervous system to interact, leading to an array of symptoms and signs, involving mental, physical, and on certain occasions psychiatric issues.
Answer:
Nucleus because it holds the DNA.
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Igneous rock is made from magma when it cools down
