Taking a big breath of air, you have filled your lungs mostly with: Oxygen molec

Question

Taking a big breath of air, you have filled your lungs mostly with:

Oxygen molecules from the troposphere

Oxygen atoms from the stratosphere

Nitrogen molecules from the troposphere

Carbon dioxide molecules from the atmosphere

An equal mixture of oxygen and nitrogen from the densest portion of the atmosphere

Smog. And dust from UTA’s 55 concurrent construction projects

Oxygen molecules from the troposphere

Oxygen atoms from the stratosphere

Nitrogen molecules from the troposphere

Carbon dioxide molecules from the atmosphere

An equal mixture of oxygen and nitrogen from the densest portion of the atmosphere

Smog. And dust from UTA’s 55 concurrent construction projects

Explanation / Answer

Oxygen molecules from troposphere. Troposphere is the lowest layer of the atmosphere which extends from 0 to 12 km. We breath in oxygen molecule and exhales out carbondioxide.

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