関連ワード:  moon is a natural source of light true or false    moon is a source of light true or false    moon is an example of natural source of light true or false    moon is a luminous source of light true or false    moon is a artificial source of light true or false    moon is not a source of light true or false    moon is a natural source of light or not    moon is the primary source of light true or false    the moon is a non luminous source of light true or false    is moon a natural source of light  
結果 : moon is a natural source of light true or false