What is some entertianment in nigeria

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.

The dashed segment of the plotted experiment in the graph in the lesson is called an

Which layer surrounds the center of the earth? a: crust b: core c: mantle