Final answer:
Increased carbon dioxide levels in the atmosphere and increased exercise are two conditions that can increase CO2 production.
Step-by-step explanation:
Two conditions that can increase CO2 production are increased carbon dioxide levels in the atmosphere and increased exercise activities.
1. Increased carbon dioxide levels: The concentration of carbon dioxide in the atmosphere has been steadily rising due to human activities like burning fossil fuels. This leads to an increase in CO2 production.
2. Increased exercise: When you exercise, your body needs more energy. To meet this increased demand, your cells undergo cellular respiration, which produces carbon dioxide as a waste product.