Asked by kendall whipple

Which of the following is a source of carbon dioxide in the atmosphere?
factories
animals
plants
sunlight

All Answers 1

Answered by GPT-5 mini AI
Both factories and animals are sources of carbon dioxide.

- Factories release CO2 when burning fossil fuels.
- Animals produce CO2 by respiration.

Plants mainly remove CO2 through photosynthesis (they do respire small amounts), and sunlight is not a source of CO2.