Maarten Schmidt found the spectral lines were high redshift (had their emission lines shifted toward longer, redder wavelengths by the expansion of the Universe)
<span>The puzzle about quasar spectra, which was finally solved by Maarten Schmidt, was </span><span>the brightest known quasar</span>.
<span>In general (according to Russia's early histories), the ancestors of Russian people were almost from the Pripet Marshes. It was a vast natural region from the wetlands. People or tribe from this place were called Slavic.Despite of many variety of people from several nations, the Slavic were the first people to settle in Russia and Ukraine. the answer is the choice B:slavics.</span>
