Nitrogen ( ) is
A) a key component of life, integrated into our bodies directly from the air.
B) cycled through the environment via the activity of bacteria.
C) a product of the radioactive decay of a form of potassium in the crust.
D) now measured at 20.946% by volume in the homosphere.

Question

Nitrogen (  ) is
A) a key component of life, integrated into our bodies directly from the air. 
B) cycled through the environment via the activity of bacteria. 
C) a product of the radioactive decay of a form of potassium in the crust. 
D) now measured at 20.946% by volume in the homosphere.

Quizplus · Accepted Answer

The Answer of Nitrogen (  ) is
A) a key component of life, integrated into our bodies directly from the air. 
B) cycled through the environment via the activity of bacteria. 
C) a product of the radioactive decay of a form of potassium in the crust. 
D) now measured at 20.946% by volume in the homosphere.

Nitrogen ( ) Is