Click on the correct light curve to receive credit.
{"title":"selection","description":"The dips that you see in this curve, are a result of light shining through a cloud of gas, being ABSORBED by that gas at very specific wavelengths. These dips can be used to identify the elements contained in the cloud--- in this case: hydrogen.","type":"incorrect","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"19,8,252,150\"}]"} {"title":"Choice label","description":"The peaks that you see in this curve, are a result of the matter in the gas cloud becoming excited and then releasing that energy at very specific wavelengths. These peaks can be used to identify the elements contained in the cloud--- in this case: hydrogen.","type":"correct","color":"#ffffff","code":"[{\"shape\":\"rect\",\"coords\":\"317,9,549,150\"}]"}