The main cause of unstable leadership in the empire was due to the fact that
O
Roman soldiers were promised money to overthrow the emperor.
the death of Constantine caused the empire to be divided into three parts.
Diocletian's new split system of Latin West and Greek East failed.
the emperors were too busy purchasing luxury items to rule the empire.

The larges lakes in the world are found in: asia europe north america south america

Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation

During which era in earth's history were the first insects? mesozoic precambrian cenozoic paleozoic