Which explorer made the void shown by the letter c on the map

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

Which of the following wrote detailed accounts about early native american? a) spanish b) french c) americans d) mexicansi need this !

Can someone me write a paragraph on this topic i feel confused