Can you tell me about her hair? voice change

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 is the difference between a tundra and a taiga?

According to the theory of continental drift, what was the priginal state of the worlds continents