Why were there no coal deposits formed during the Precambrian time? Choose the correct answer. There were no swamps with land plants. There was not yet enough carbon on Earth. There was not enough land on which coal deposits could form. There was not enough carbon dioxide in Earth’s early atmosphere.

Melissa lives in a town called greendale. she discovers that when she lights a match and holds it near her kitchen faucet, the little flame grows into a larger fire. melissa is surprised because she thought the water would extinguish the flame rather than ignite it further. her mother tells her that the water might be contaminated with dissolved methane, a primary component in natural gas. melissa investigates the matter and finds that cases of methane contamination started shortly after a company began fracking for natural gas in the area. based on this information, which three statements are plausible consequences of fracking in greendale?

Which technically is nasa developing that will astronauts reach mars

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes