The answer is once underwater.
"read" the template strand
the answer is O CO2 hope it helps
Viruses are similar because they move around freely.
Answer:
Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Biogas is a renewable energy source.