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, as plants release oxygen during photosynthesis when exposed to bright sunlight.
The energy given off by burning matchsticks is in the form of light and heat. This can be observed through the bright flame that is produced and the warmth that is felt when a matchstick is burning.
When you poison loads off people . Gass or liquid poisoning The holacaust is an example off this. Hope this helps
Gases are released through the stomata, on the underside of the leaf. There is more than one gas given off by the leaf, however. Carbon Dioxide is given off when the plant performs aerobic respiration; Oxygen and water vapor are given off during photosynthesis; and there are other gases that different plants give off at different times.
The sun is a giant gass ball, but the energy it shoots off is called radiation.