Human
Genetics can cause this. But, today, the most common reason is being obese.
This depletion will cause UV to enter earth. This will cause extinction of mankind.
The Egyptian cobra is the most common cobra in Africa
It is the fate of most living things eventually to go extinct. standard commonplace rate of extinction not associated with a mass extinction.
The most common cause of anemia is blood loss.
Hurricanes because it covers the most land.
The most common cause of chemical weathering is oxygen
The most common cause of chemical weathering is oxygen
Extinction events, such as the Permian extinction and the KT extinction event. You have adaptive radiation driving evolutionary change after such events. Google " the rise of the mammals. "
No, raccoons are quite common over most of their range and are in no danger of extinction.
the most common cause of HIVs sharing needles and threw sexual activities.
The most common cause of death in a tornado is being hit by debris.