Which of the following processes maintain the salinity (salt content) of the earth's oceans?
a. animal reproduction and decomposition
b. plant photosynthesis and respiration
c. transpiration and atmospheric condensation
d. volcanic emissions and reactions at the sea floor

actually the correct answer isn't up there it is (Land erosion atmospheric deposition.)

atp is used for energy.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.