What does the salinity of sea water represent? the volume of salt in the ocean the mass of salt in the ocean the concentration of salt dissolved in the ocean the concentration of all dissolved chemicals in the ocean

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

What effect might melting sea ice have for people who live in coastal areas?

Scientists have developed an explanation of a phenomenon from several verified hypotheses. the explanation has been confirmed through numerous experimental tests.which option best describes this explanation? a. scientific lawb. research questionc. hypothesisd. scientific theory