The hydrosphere is comprised of land masses, such as mountains and hills gases, such as hydrogen and nitrogen microscopic particles found in living organisms bodies of water, such as oceans and lakes

The correct answer for the blank is- bodies of water, such as oceans and lakes .

The Earth comprises of four different spheres that are-

Geosphere ( that includes land that is having rocks and minerals), hydrosphere ( includes water bodies like oceans and lakes), biosphere ( including life forms), and atmosphere ( includes all the air on the earth)

c. the initial amount of money placed in the savings account

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds