Water enters a cell and waste material leave the cell through the membrane. Based on this information, the cell membrane is

distilled water

hope that helps bby<3

i think that c)gold was found there

but i am not sure

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds