If the power fails and the lights go dark, what will happen to CO₂ levels?
A) CO₂ will rise as a result of both animal and plant respiration.
B) CO₂ will rise as a result of animal respiration only.
C) CO₂ will remain balanced because plants will continue to fix CO₂ in the dark.
D) CO₂ will fall because plants will increase CO₂ fixation.
E) CO₂ will fall because plants will cease to respire in the dark.

Question

Quizplus · Accepted Answer

When the power fails and lights go dark, there will be no photosynthesis happening, which is the process by which plants use CO₂ and produce oxygen. As a result, the CO₂ levels will start to rise as a result of the respiration of animals and humans in the area. This will cause a decrease in the level of oxygen, which can be dangerous for humans and animals.

If the Power Fails and the Lights Go Dark, What