Which of the following was a major accomplishment of romans in the field of transportation and them to maintain their vast empire?
a.
they domesticated animals such as the horse to use as a method of transportation.
b.
they built numerous canals to connect different parts of the empire.
c.
they built a large network of roads throughout the empire.
d.
they were the first civilization to build ocean-going ships.

what was a benefit of the time period known as pax romana?
a.
the roman empire doubled the size of its territory.
b.
the roman empire discovered many scientific advances.
c.
the roman empire became a more democratic government.
d.
the roman empire did not suffer any major wars.

the people of ancient greece lived in small, isolated communities that eventually grew in large city-states. why were these communities isolated from one another?
a.
they wished to avoid diseases.
b.
they spoke different languages.
c.
greece has a varied geography.
d.
they distrusted other people.
the end of the roman republic and the beginning of the roman empire occurred in about 31 bce. this occurrence was influenced by the death of which of these rulers? a. alexander the great b. julius caesar c. marc antony d. caesar augustus

early human migrations are the earliest migrations and expansions of archaic and modern humans across continents and are believed to have begun approximately 2 million years ago with the out of africa migration of homo erectus. this initial migration was followed by other archaic humans including h. heidelbergensis, which lived around 500,000 years ago and was the likely ancestor of both denisovans and neanderthals. early hominids were said to have "crossed land bridges that were eventually covered in water" .

within africa, homo sapiens dispersed around the time of its speciation, roughly 300,000 years ago.the "recent african origin" paradigm suggests that the anatomically modern humans outside of africa descend from a population of homo sapiens migrating from east africa roughly 70,000 years ago and spreading along the southern coast of asia and to oceania before 50,000 years ago. modern humans spread across europe about 40,000 years ago.

the migrating modern human populations are known to have interbred with local varieties of archaic humans, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans.

after the last glacial maximum, north eurasian populations migrated to the americas about 20,000 years ago. northern eurasia was peopled after 12,000 years ago, in the beginning holocene. arctic canada and greenland were reached by the paleo-eskimo expansion around 4,000 years ago. finally, polynesia was peopled after 2,000 years ago, by the austronesian expansion.

b

explanation:

just like you man, i personally think its either c or d

explanation:

but good luck with the test man

straight down to hell mate