Why are water and carbon essential to live?

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Comparing planet composition is achieved. - Two large planets have the same size and mass but different orbits. a. Which would you expect to have more hydrogen? Why? b. If they have had different amounts of volcanism, which would you expe ...
Understanding why carbon dioxide is a major constituent of the atmosphere of Venus. - Venus and Earth are about the same size and mass, and degassing volcanoes on each probably produced both CO2 and H20 gas. Why is CO2 a major constituent of the atmosphere only on Venus, while H20 is n ...
The differences between Earth's and Venus' atmospheres. - Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth's atmosphere. Explain why the a ...
The formation is atmospheres is emphasized. - This job considers how atmospheres form. Given that Venus, Earth, and Mars are all terrestrial planets, the posting briefly discusses how they could end up with such different atmospheres.
Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth’s atmosphere. Explain why the atmospheres are so different. - g. Venus and Earth are about the same size and mass, yet carbon dioxide is a major constituent of the atmosphere of Venus, while oxygen is much more abundant in the Earth’s atmosphere. Explain ...