Multiple Choice
Which of the following is not a variable in the Ideal Gas Law equation PV = nRT?
7. Gases
The Ideal Gas Law
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Which process is primarily responsible for producing the oxygen we breathe?
A
Photosynthesis
B
Respiration
C
Fermentation
D
Combustion
Verified step by step guidance1
Identify the processes listed: Photosynthesis, Respiration, Fermentation, and Combustion.
Understand that photosynthesis is a process used by plants, algae, and some bacteria to convert light energy, usually from the sun, into chemical energy stored in glucose. During this process, oxygen is released as a byproduct.
Recognize that respiration is a process where organisms convert glucose and oxygen into energy, carbon dioxide, and water. It consumes oxygen rather than producing it.
Note that fermentation is an anaerobic process (does not require oxygen) used by some organisms to produce energy, typically resulting in byproducts like alcohol or lactic acid, but not oxygen.
Understand that combustion is a chemical process that involves the burning of a substance in the presence of oxygen, resulting in the production of carbon dioxide and water, and it consumes oxygen rather than producing it.
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