How could you figure out what are the proportions of gravel, sand, silt, clay, and organic matter in a local soil sample?

I’m stuck on this question cuz i’m stupid sksksksk

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies

La glucosa es el nutriente mas utilizado por las celulas en la respiracion celular en esta ocurre 4 fenomenos cuales son