4.6 billion years ago - thea crashed to earth, the moon - the particles gradually clump together and form, of particles around the earth - as the rocks,cool it forms a ring,

द्वारा

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?