, pub-7169657227878451 , DIRECT, f08c47fec0942fa0, pub-6403044094328716, DIRECT, f08c47fec0942fa0

Tagged: Environmental pollution

The dinosaurs extinction 0

The causes of the old and recent extinction

The scientists witnessed five mass extinctions, and some scientists believe that we live the sixth extinction age (The Recent Extinction), where the rate of the extinction is 40 times larger than the normal rate...