An equilateral triangle has one Vertex at the origin​

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.

Wich of the following is not likely to appear on a map

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