text: what is the approximate diameter, weight , area and density of earth ?   equatorial circumference 40,075.02 km  mean circumference        40,041.47 km  surface area                    510,065,600 km²  land area                        148,939,100 km² (29.2 %)  water area                      361,126,400 km² (70.8 %)  mass                                5.9742×10^24 kg  density                            5,515.3 kg/m³