Choose The Right Preposition

The planet Mars, I scarcely need remind the reader, revolves about the sun at/by/for/from/of/to/upon a mean distance at/by/for/from/of/to/upon 140,000,000 miles, and the light and heat it receives at/by/for/from/of/to/upon the sun is barely half of that received at/by/for/from/of/to/upon this world. It must be, if the nebular hypothesis has any truth, older than our world; and long before this earth ceased to be molten, life at/by/for/from/of/to/upon its surface must have begun its course. The fact that it is scarcely one seventh at/by/for/from/of/to/upon the volume of the earth must have accelerated its cooling at/by/for/from/of/to/upon the temperature at/by/for/from/of/to/upon which life could begin. It has air and water and all that is necessary at/by/for/from/of/to/upon the support of animated existence.