About The Earth
Physical Constant | Value |
---|---|
Surface Gravity | 9.806 m/s^2 |
Escape Velocity | 11.19 km/s |
Temperature Range | -88° C to 58° C (-126° F to 136° F) |
Element | Amount (%) |
---|---|
Oxygen | 46.6% |
Silicon | 27.7% |
Aluminum | 8.1% |
Iron | 5.0% |
Calcium | 3.6% |
Sodium | 2.8% |
Potassium | 2.6% |
Magnesium | 2.1% |
All Others | 1.5% |
Gas | Amount (%) | Amount (PPM) |
---|---|---|
Nitrogen | 78% | 780000 |
Oxygen | 21% | 210000 |
Water Vapor (0.001-5%) | 5% | 50000 |
Argon | 0.9% | 9000 |
Carbon Dioxide | 0.04% | 400 |
Neon | 0.002% | 20 |
Helium | 0.0005% | 5 |
Methane | 0.0002% | 2 |