If element x has 73 protons, how many electrons does it have?

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The pacific plate is an oceanic tectonic plate. how did a hot and the pacific plate interact to form the hawaiian islands?