What is always included in a comparative investigation

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Find the mass, in grams, of 5.00*10^23 molecules of f2

From the choices provided below, list the reagent(s) in order that will react with cyclopentanone to form the compound shown below.