QUESTION 5 Study the graph below. Approximately how much higher is the modern day extinction rate of mammals above the background extinction rate? A manmade catastrophe Cumulative percent of vertebrate species driven to extinction by human activity 25% 20 15 10 0.5 AMPHIBIANS MAMMALS BIRDS REPTILES OFISH o 1500 1000 1700 1000 1900 2018 Source: IPBES Global Assessment about 20 times about 200 times about 0.2 times about 2 times BACKGROUND EXTINCTION RATE THE WASHINGTON POST