1. WWEELLCCOOMMEEAASSWWAATTHHYY..RR..SSPPHHYYSSIICCAALL SSCCIIEENNCCEECCHHRRIISSTT NNAAGGAARR CCOOLLLLEEGGEE OOFF EEDDUUCCAATTIIOONNTTHHIIRRUUVVAALLLLAAMM 2. SOLAR SYSTEMSun…
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