For the oxygen created and for the ridding of CO2 that is "used up" in the process
Answer: Public health measures such as pure food and water, and development of immunizations against many serious diseases such as polio and smallpox, coupled with enhanced economic conditions, are together credited with substantial reductions in the burden of infectious diseases.
Stay calm, figure out the pros and cons to the conflict, then talk about it.
Did you know that there are like 8 planets in the solor system :)