Final answer:
Exposure to natural disasters, violence, disease, and accidents can lead to bodies lying around and decaying.
Step-by-step explanation:
Decaying bodies can result from exposure to factors such as natural disasters, violence, disease, and accidents. Natural disasters like mudslides and poor drainage can lead to bodies lying around and decaying. Violence, such as homicides or mass casualties, can also result in bodies decaying. Diseases like tuberculosis, malaria, pneumonia, and AIDS can cause deaths and bodies to decay. Finally, accidents that cause fatalities can lead to bodies lying around and decaying.