Why Does the Upper Atmosphere Contain Only Very Little Dissociated

question 68

Multiple Choice

Why does the upper atmosphere contain only very little dissociated nitrogen?

• A) most of the nitrogen is in the troposphere and not in the upper atmosphere
• B) the bond energy of nitrogen is very high and it does not absorb radiation very efficiently
• C) nitrogen atoms are extremely reactive and so react with other substances immediately upon their formation
• D) the dissociated nitrogen very rapidly diffuses out of the atmosphere and into space
• E) There is no N₂ in the upper atmosphere.

---

Definitions:

Central Vein

Terminal branches of the hepatic veins that lie centrally in the hepatic lobules and receive blood from the liver sinusoids.

Sinusoids

Specialized, capillary-like vessels that are larger and more permeable, found in certain organs like the liver, spleen, and bone marrow, facilitating blood flow and exchange of nutrients.

Liver

A large vital organ in vertebrates responsible for detoxification, protein synthesis, and biochemical production necessary for digestion and metabolism.

Goblet Cells

Specialized epithelial cells found in the respiratory and intestinal tracts, secreting mucus to lubricate and protect the mucous membranes.