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Bookmark or Share- Are clouds a gas, liquid, and/or solid?So that makes it sound like it could be a liquid, or contain liquid droplets rather than "freely moving" molecules that typically make up a gas. But at another web site, which doesn't seem all that authoritative, it says that clouds are a solid, liquid, and gas simultaneously! A cloud is a liquid, a solid, and a gas. That does seem intriguing.
- In which state of matter exactly are the clouds?Do you mean the state like in gaseous, solid, liquid ? A cloud is a complicated thing. It is mostly air (gaseous), but also has liquid (water) and some have solid (ice) components. So, i fear, the question should be re-formulated. Are you thinking of a certain type of cloud ? $\endgroup$ –
- How much and what kind of radiation passes through a cloud?They are not. What a cloud actually does to block or not block electro-magnetic radiation is not an absolute. It varies by type of cloud, thickness, altitude, angle of the sun and likely many other factors. As a generality, clouds block a part of visible, UV and IR light depending on a number of factors especially depth of the cloud.
- Why silicon is abundant in earth surface?Silicon forms in nucleosynthesis processes in large stars (larger than our suns) and in supernovae. Turns out that quite a lot of silicon can be formed this way. When our solar system was still a hot molecular gas cloud, our region in place was rich in silicon (among other elements) so eventually Earth has lots of silicon in it.
- Why is Carbon Dioxide a Greenhouse Gas whereas Ammonia is not?Yes, ammonia fits that description, but it is not long-lived in the atmosphere and it is not widespread. So, even though ammonia is a good infrared absorber, it is not an important greenhouse gas. Ammonia in the atmosphere is very reactive, and will form to make nitrates and sulfates while in solution (e.g. in cloud droplets).
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