What kind of things were hieroglyphics writing on?

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!

During the(answer), roman generals warred over succession. these conflicts drew soldiers away from the frontier and made the empire vulnerable to( answer) a. imperial crisis b.inflation c. pax romana d. great schism e. trade how did the huns contribute to the fall of the western roman empire? select all that apply. a.they stopped trading with rome, which caused inflation. b.they hindered roman trade along the silk road. c.they conquered and burned rome. d.they dealt the roman army a major blow at chaldôn. e.they drove germanic people into the empire. what condition made the byzantines vulnerable to attack by muslim turks? a.the council of nicea b.the death of constantine c.ongoing wars with the sasanian persians d.invasions by huns and germanic peoples today, the (answer) still heads the roman catholic church, which is centered on rome. there is no longer a byzantine emperor, but each country has its own ( answer) to lead the eastern orthodox church there. ceasor b. bishop c. pope d. tsar e. governor f. patriarch g. perfect h. council the teachings of jesus became a religion in large part because ( answer) spread his teachings and gathered followers. paul carried christian beliefs throughout the roman empire and attracted many ( answer) a. apostiles b pharisees c. non jews d.sauducees answer (correct) and i will give brailiest thxx .