Over hunting species leads to extinction (especially species like giant sloths, giant bison, mastodons, cave bears, saber-toothed cats)
Agricultural Revolution:
Flora and Fauna became domesticated
Habitats were destroyed because the grasslands forests and wetlands were replaced by farmland that results in erosion and floods and made the soil less fertile
Industrial revolution
Artificial substances replaced raw animals and plant products (plastics, pesticides)
