<Tr> <Th> Mass </Th> <Td> 7024597237000000000 ♠ 5.972 37 × 10 kg (7024597236001731600 ♠ 1.316 68 × 10 lb) (7024596565000000000 ♠ 3.0 × 10 M) </Td> </Tr> <Tr> <Th> Mean density </Th> <Td> 5.514 g / cm (0.1992 lb / cu in) </Td> </Tr> <Tr> <Th> Surface gravity </Th> <Td> 9.807 m / s (7000100000000000000 ♠ 1 g; 32.18 ft / s) </Td> </Tr> <Tr> <Th> Moment of inertia factor </Th> <Td> 0.3307 </Td> </Tr>

What is the composition of earth and its appearance