Exact size and distances from Earth and Sun to allow total solar eclipses. Diverts solar radiation. Directional aid for animals and man. A million times larger than Earth. Provides ideal light and temperature for life.
Soil contains elements needed for plants to grow.
All natural elements found in sea water. Ozone layer in upper atmosphere to protect life from harmful solar radiation. Ionosphere reflects radio waves. Water cycle - clouds to provide water inland. Winds to mix air, move clouds, disperse seeds, etc.