Multiple Choice
Which of the following best describes the results of a chemical reaction?
1. Intro to General Chemistry
Chemical Properties
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Which of the following natural processes release CO2 into the environment?
A
Evaporation
B
Respiration
C
Nitrogen fixation
D
Photosynthesis
Verified step by step guidance1
Identify the natural processes listed in the problem: Evaporation, Respiration, Nitrogen fixation, and Photosynthesis.
Understand the role of each process in the carbon cycle: Respiration is a process where organisms convert glucose and oxygen into energy, releasing carbon dioxide (CO2) as a byproduct.
Recognize that evaporation is a process involving the phase change of water from liquid to gas, which does not involve carbon dioxide.
Understand that nitrogen fixation is a process where atmospheric nitrogen (N2) is converted into ammonia (NH3) by certain bacteria, which does not involve carbon dioxide.
Recognize that photosynthesis is a process where plants convert carbon dioxide and water into glucose and oxygen, thus consuming rather than releasing CO2.
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