Suppose that 40 ml of water is poured simultaneously into each of the containers shown below. after 10 seconds, 5 ml remains atop the gravel sample, 20 ml of water remains atop the sand sample and 28 ml of water remains atop the silt sample. water continues to seep into each of the substances. which substance has the lowest permeability?

answers are
gravel
sand
silk
it is impossible to tell from the information given

worth 15

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.