atomic: hydrogen, helium, oxygen, nitrogen, chlorine, neon diatomic: carbon dioxide, carbon monoxide, nitrogen dioxide other: photon
For ten items, you use the phrase 'ten items'.
There is only one combination of ten items out of ten. For this question to have a non-trivial answer, either the ten items need to be selected from a larger number of items or a smaller number of items need to be selected from the ten items.
Yes; 10 as a power of ten is 101.
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Chinees
Well in team fortress 2 to find items on the home screen click servers, select what you want, join the server and then play :). You find items completely random by just playing, but you can only find ten a week. This resets on Thursday so if you have found ten items before Thursday, after you can find ten items again. Hope I helped :D
A ten letter word for these items is instrument.
14.400, if the written "ten" is considered exact.
Yes, SO2 is considered a greenhouse gas.
Yes, ammonia is considered a greenhouse gas.
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