because the deeper you go into the cave the harder it is to breath
it's deep depths and tempretures
no oxygen and crushing pressure
Objects in space experience extreme temperatures in space becuase space is a vacuum.
Its gets colder as you go. If you are really thirsty and don't have anything to drink you cant drink cave water because it has germs in it. There are certain gases in the air and it can cause death. They are also steep drop offs and slippery surfaces
because the deeper you go into the cave the harder it is to breath
A cave is considered an extreme environment because of its darkness, limited food sources, lack of sunlight, and often challenging physical conditions such as low oxygen levels, high humidity, and fluctuating temperatures. Organisms living in caves have adapted unique strategies to survive in this harsh environment.
Caves provide a stable environment with consistent temperature and humidity levels, protecting paintings from extreme fluctuations that can cause deterioration. The darkness of caves shields paintings from light damage, such as fading or color changes. Additionally, caves are usually secluded and provide a natural barrier to protect against vandalism or human interference.
Either it can be extremely cold or hot, have no or little water, or no air to breathe. That's what makes an environment extreme... for humans.I don't know about animals, but that answer was for humans. Basically, the environment has to be not meeting the basic needs of human life, which are:WaterFoodAirShelter
Caves.
Animals may live in caves for reasons such as protection from predators, extreme weather conditions, and as a place to hibernate. Caves can provide a safe environment with stable temperatures and limited access points, making them ideal habitats for certain species.
The desert, ocean, caves and the sky [space].
caves,woods and rivers.