Final answer:
Cellular respiration and combustion are the two processes in a biogeochemical cycle that cause atoms to recombine into new molecular products.
Step-by-step explanation:
The two processes involved in a biogeochemical cycle that cause atoms of elements to be recombined into new molecular products are cellular respiration and combustion.
Cellular respiration occurs in the cells of living organisms and involves the breakdown of glucose to produce energy in the form of ATP. During this process, oxygen is consumed and carbon dioxide is produced.
Combustion is a chemical reaction that occurs when a substance reacts with oxygen to produce heat and light. In the biogeochemical cycle, combustion of organic matter releases carbon dioxide, water vapor, and other byproducts.
Learn more about Biogeochemical cycle