What chemical speeds up the process of decomposition in dead organisms are exposed to it? nitrogen oxygen hydrogen chlorine

Correct answer is Oxygen (the other answer is wrong)

Explanation:  Exposure to oxygen, bacteria, and scavengers will cause decomposition to occur quickly. The first parts to decompose are soft tissues, like skin and organs. The last parts to decompose are hard parts like bones, teeth, shells, spines, or plates.

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.