What is meant by partially permeable membranes.

partially permeable membrane A membrane that is permeable to the small molecules of water and certain solutes but does not allow the passage of large solute molecules. This term is preferred to semipermeable membrane when describing membranes in living organisms.

Explanation:

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

littering streams           is the answer