Find answers to your most challenging questions with the help of IDNLearn.com's experts. Ask your questions and receive comprehensive and trustworthy answers from our experienced community of professionals.
The oxygen in the atmosphere comes from:
1. plants
2. oil and coal
3. decomposers
4. animals
Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. IDNLearn.com is committed to providing the best answers. Thank you for visiting, and see you next time for more solutions.
