Oxygen - O2 Which accounts for about 10% of our atmospheric oxygen. The 90% comes from algae.
Oxygen
AgNo3 (aq) + HCl (Aq) -> HNO3 (aq) + AgCl (s) there's no gass given off, only solid and aquous substances.
Oxygen is given of
O2
Photosynthesis.
carbon dioxide + water
sun rays or photosynthesis
oxygen
When you poison loads off people . Gass or liquid poisoning The holacaust is an example off this. Hope this helps
a plant at a fixed distance from the light source
Oxygen
The sun is a giant gass ball, but the energy it shoots off is called radiation.