Which factor would scientists consider evidence that humans are causing the current mass extinction?
A) The extinction rate is lower than extinction rates from natural causes.
B) We can count the number of species currently going extinct.
C) Megafauna on all continents began to go extinct shortly after humans arrived.
D) Mass extinctions have occurred throughout history.
E) The extinctions are occurring only in regions densely populated by humans.

Question

Quizplus · Accepted Answer

The fact that megafauna on all continents began to go extinct shortly after humans arrived is a strong indicator that humans are causing the current mass extinction. This pattern has been observed consistently across the globe, suggesting a direct link between human activity and extinctions. Factors A, B, D, and E do not provide clear evidence of human-caused extinctions.

Which Factor Would Scientists Consider Evidence That Humans Are Causing