Pls help: list any chemical process other then photosynthesis and respiration

What are some possible short and long term medical concerns for crew members on longer space exploration trips

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.

When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?