granted 4 points
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Successfully passed (سلسلة عباقرة خالدون / اسحق نيوتن) book test
granted full Mark badge
Successfully passed (AIR POLLUTION (SCIENCE MATTERS )) book test
granted Explorer badge
Successfully passed (AIR POLLUTION (SCIENCE MATTERS )) book test
granted 4 points
granted 3 points
Successfully passed (سلسلة مشاهير علماء المسلمين / ابن البيطار (اعظم علماء النبات)) book test