What are the two main forces that cause surface changes on earth?
a. erosion and plate tectonics
b. chemical and physical weathering
c. plate tectonics and weathering
d. weathering and erosion

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Plz which natural resources in southwest asia are important? choose all answers that are correct. oil plutonium water natural gas

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?