Can you identify the statements that correctly describe the natural sources of carbon dioxide in Earth's atmosphere? (Choose 4)

1. Carbon dioxide is released through the process of respiration by living organisms.

2. Volcanic eruptions release carbon dioxide into the atmosphere.
3. Combustion of fossil fuels produces carbon dioxide as a byproduct.
4. Decomposition of organic matter releases carbon dioxide.
5. Photosynthesis by plants and algae removes carbon dioxide from the atmosphere.