Death And Decomposition Practice Test

Mummification is driven by desiccation—the rapid drying of tissues so microbes and enzymes can’t readily break them down. When moisture is pulled away and airflow removes water vapor, the body dries out faster than decay can set in. Low humidity plus strong airflow creates conditions where body fluids evaporate quickly and surface and internal tissues desiccate, preserving the tissues rather than letting bacteria and fungi take over. That’s why the environment described as dry with good air movement best promotes mummification. In contrast, high humidity with stagnant air keeps the body moist, enabling microbial growth and decay; high moisture with poor ventilation is similarly conducive to decomposition; submerged conditions involve water exposure that typically alters decay pathways toward hydrolysis and other processes rather than classic desiccation-based preservation.