What factors can disrupt Earth's systems?

What does gradualism and punctuated equilibrium have in common

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis