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onebytwo

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i thought it would have been the B, the atmosphere
because it contains N2, O2, Ar which are all elements
doesnt the lithosphere contain mainly compounds, like metal oxides and stuff.
riviet, can u explain why you'd choose A
thanks
 

Riviet

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Well I think the key word to be looking at in this question is "mixture". I think you are correct onebytwo as the atmosphere is really a mixture of gases. I originally thought of the lithosphere but it's really just a whole lot of rock and isn't really a mixture of elements.
 

muttiah

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we got dis question in our yearlies.. answer was ATMOSPHERE...
 

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