Is ch4 to co2 reduction or oxidation?

When you add oxygen to methane to produce carbon dioxide and water, that's also oxidation. The carbon atom loses electrons, and its oxidation state changes while the oxygen atoms gain electrons and are reduced. This is known as a redox reaction

Explanation:

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

substitution is the answer in this case