I go with Ice Core examples since early sociteties probably didn't have Written Records or maps, and tree rings would only tell if they were fossilized. I hope this helped :)
Answer:
Reverse Osmosis.
Explanation:
This is the mechanisms of water purification for drinking water which is droven by the chenical potential of the solvent .
It involves the use of partiaiy permeable membrane to allow ions , water molecules ,solvent molecules to pass through during purification
A pertial permiable menenrane in this prurifiction process is the membrane that allow only water molecules, ions and restricted other unwanted chemical contaminants from passing through it.
the basic unit of life is the cell
Plasma contains albumins that need we need to maintain osmotic balance
For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere. So letter C. is the Answer.
