Is biacetyl or acetoin polar or nonpolar?

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?

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

What is the percentage composition of carbon in the compound ch4