Is atomic radius and atomic size the same?

Explanation:

Atomic size is the distance from the nucleus to the valence shell where the valence electrons are located. ... Atomic radius is a more definite and measureable way of defining atomic size. It is the distance from the center of one atom to the center of another atom in a homonuclear diatomic molecule.

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

the answer would be a