Methane gas is a carbon-based gas that is formed when living organisms decompose. Scientists have measured large amounts of methane gas trapped under the polar ice caps. Predict what might happen to global atmospheric carbon levels if the polar ice caps were to melt. Explain your answer.

Atypical human cell is approximately 12.00 μm in diameter and enclosed by a membrane that is 5.000 nm thick. (a) what is the volume of the cell including the membrane? (b) what is the volume of the cell membrane? (c) what percent of the total volume does its membrane occupy? to simplify the calculations, model the cell as a sphere. enter your answers using four significant figures.

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic