Final answer:
Humans require a specific range of temperature, humidity, and atmospheric pressure to survive. Temperatures should be between 68°F (20°C) to 77°F (25°C), humidity between 30% to 50%, and atmospheric pressure close to 101.325 kPa or 1 atmosphere, along with sufficient oxygen and nutrients.
Step-by-step explanation:
The specific temperature, humidity, and pressure conditions for a human to remain alive in a fixed position without movement or exercise are determined by our bodily requirements. A narrow range of temperatures is hospitable to humans; typically, this range is between 68°F (20°C) to 77°F (25°C). Humidity levels should be comfortable, generally between 30% to 50%, to prevent dehydration or hyperthermia. Atmospheric pressure close to sea level pressure, which is 101.325 kPa (kilopascals) or 1 atmosphere, is crucial for maintaining proper blood and cellular gas levels and ensuring efficient respiration. The body requires enoughn oxyge to sustain metabolism and remove carbon dioxide, so any significant deviation from sea level pressure could jeopardize these processes.
Vital to survival are also the nutrients such as carbohydrates, lipids, proteins, vitamins, and minerals, and the presence of water. Without these, the body cannot maintain its functions for extended periods. Extreme heat and cold also threaten human survival, as our body has limited capacity to cope with temperatures outside its narrow comfortable range, requiring us to seek shelter or clothing to modify our environment to suitable levels.