Final answer:
Human activities, such as burning fossil fuels and deforestation, have a significant impact on the carbon cycle, contributing to climate change.
Step-by-step explanation:
Humans have a significant impact on the carbon cycle. The burning of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide (CO2) into the atmosphere. Deforestation also contributes to increased CO2 levels. Additionally, industrial processes and agriculture release other greenhouse gases like methane (CH4) and nitrous oxide (N2O). These actions disrupt the natural balance of the carbon cycle by adding excess greenhouse gases, leading to climate change and global warming.
Learn more about Impact of human activities on the carbon cycle