Question

Respiration in living things and burning are the important uses of _____ gas.

Answer 1

Respiration:

1. Respiration is the process by which we take oxygen into our bodies and exhale carbon dioxide.
2. Most of the organisms on this earth are aerobic and require oxygen to survive.
3. The nutrients in the food react with oxygen to produce energy in the form of ATP.
4. So, oxygen gas is necessary for the normal growth of cells, reproduction, and production of energy.

Final Answer: Respiration in living things and burning are the important use of oxygen gas.