The Sixth Mass Extinction

• It is the first time in Earth's history that species extinction rates are increasing.
• It is happening at a slower rate than previous mass extinctions.
• It is caused by human activities and happening at a faster rate than previous mass extinctions. (correct)
• It is the result of natural events like climate change and geological activity.

• The current rates are similar to previous mass extinctions.
• The current rates are 10 to 100 times faster than in pre-human times.
• The current rates are 100 to 1,000 times slower than in pre-human times.
• The current rates are 100 to 1,000 times faster than in pre-human times. (correct)

• An increase in the diversity of species.
• A decrease in the number of endangered species.
• Nearly half of all the species on Earth might be wiped out within the next 100 years. (correct)
• No significant impact on Earth's species.