The answer is; geysers
Due to the water underground being heated from geological reason such as heat from magma chambers, the water heats up and expands. The pressure of the rock above the water causes it to reach very high pressures. The water finds cracks and fissures in the rocks above until it reached the surface. The pressure releases and the water eject from the ground into a hot fountain.
Answer:
The animals could change it. For example, a bunny could dig a hole in the ground, making a home for other animals inside of it, too, changing the animals' living environment.
Or natural disasters could change their environment, too. For example, if a landslide occurred and covered a pond, frogs and snakes could lose their living areas and food, which would make them have to move to a different area, changing another ecosystem.
Jejunum if what i thought of
The answer to the question above is a cell.
