in general, how are the causes of mass extinction different from the causes of background extinction?

Amass extinctions generally result from the slow accumulation of changes to the environment while background extinction results from loss of genetic diversity

Bmass extinctions happen when populations crash due to overpopulation while background extinctions are more likely to results from disease.

Cmass extinctions result from fast and drastic changes to the environment while the causes of background extinction take place slowly over time.

Dmass extinctions tend to result from habitat loss while background extinctions result from loss of biodiversity