What blood vessel receives blood from the renal veins?

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

halogen, any of the six nonmetallic elements that constitute group 17 (group viia) of the periodic table. the halogen elements are fluorine (f), chlorine (cl), bromine (br), iodine (i), astatine (at), and tennessine (ts).