Which process might involve the use of chemicals for preservation purposes?

Embalming is the process that specifically involves the use of chemicals for preservation purposes. This practice is designed to temporarily preserve the body and delay decomposition, allowing for funeral services to take place and enabling the deceased to be viewed by family and friends. During embalming, various chemicals, typically formaldehyde-based solutions, are injected into the vascular system to disinfect and preserve the tissues.

In contrast, an autopsy is a medical procedure performed to determine the cause of death, which may not involve preservation chemicals. Cremation, on the other hand, involves the burning of the body, which eliminates the need for preservation. Interment refers to the act of placing the deceased's remains in a grave or tomb; this process also does not involve chemical preservation since it typically deals with burial.