Some biologists think that ________ are causing a sixth mass-extinction event.
A)the cosmic rays
B)the tides
C)humans
D)asteroids

Question

Quizplus · Accepted Answer

Many biologists believe that humans, through activities such as habitat destruction, pollution, and overhunting, are causing a mass extinction event that could result in the loss of up to 50% of all species on Earth. This is sometimes referred to as the Anthropocene extinction. The other choices, cosmic rays, tides, and asteroids, are not considered to be significant factors in the current mass extinction event.

Some Biologists Think That ________ Are Causing a Sixth Mass-Extinction