Bored hmu im in class so boring

In the above painting by salvador dalí, entitled persistence of memory, which of the following objects do not occupy positive space? a. the clocks c. the tree trunk b. the ground d. the cliff select the best answer from the choices provided

Which scientist listed below is not one of those to advance the study of mathematics? a. euclid b. herodotus c. pythagoras d. archimedes

Which sout american country has the highest population density