Rank These Gases in Order of Their Abundance in the Atmosphere

question 21

Multiple Choice

Rank these gases in order of their abundance in the atmosphere (least to greatest) .
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(O₂, N₂, H₂, He, CO₂)

• A)O₂ < N₂ < H₂ < He < CO₂
• B)N₂ < O₂ < H₂ < He < CO₂
• C)H₂ < He < CO₂ < O₂ < N₂
• D)H₂ < He < O₂ < CO₂ < N₂
• E)CO₂ < He < H₂ < O₂ < N₂

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Definitions:

Renal Pyramids

Cone-shaped tissues in the kidneys that process liquid waste and play a critical role in urine formation.

Renal Medulla

The innermost part of the kidney that consists of renal pyramids and nephrons where urine formation takes place.

Renal Hilum

The entry and exit site for structures such as the ureter, blood vessels, and nerves at the kidney.

Uric Acid

A waste product found in the blood, produced from the breakdown of purines, and excreted in urine; high levels can lead to gout.