What do scientists study to reconstruct past climate conditions? tree branches, pollen grains, and rain water pollen grains, tree rings, and fossils rain water, tree rings, and fossils fossils, pollen grains, and tree branches

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.

What conclusión can be drawn about the middle east

Match the letters with the correct terms