Answer: an increase in the human population
Explanation:
An increase in the human population is the likely cause of the current increase in rates of extinction because of the fact that the human population is increasing considerably all over the world. With the increase in population the demand for resources also increasing. The human population is dependent upon flora and faunal species for their daily requirements such as medicines, food, cloth and shelter. Illegitimate activities like hunting, poaching, wildlife trafficking also increasing considerable and are responsible for extinction of the rare species from the world biodiversity.