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.
B
You might also like to view...
Erosion of the Taconic Highlands resulted in the development of a(n) ____________________ called
the ____________________. Fill in the blank(s) with the appropriate word(s).
If a tornado is rotating in a counterclockwise direction and moving toward the northeast, the
strongest winds will be on its __________ side. a. southwestern b. southeastern c. northeastern d. northwestern
Explain the occurrence of land and sea breezes and mountain and valley breezes
What will be an ideal response?
Seismic waves travel faster in oceanic crust than in continental crust.
Answer the following statement true (T) or false (F)