In one theory, what led humans to move north into europe?

According to scientific or archaeological study, one theory, that led humans to move north into Europe is that the Ice Age ended and the planet warmed up.

The Implies that at a time when the planet earth is cooling down which is over 2 million years gos  Humans (or homô sapaiens ) during this period were constantly looking for more foods and hunting expedition. This period is known as Ice Age, and it witnessed many humansfrom Africa who eventually migrated toward europe as a result of climatic factors such as droughts, atural disasters, and natural resources, etc.

Hence, it can be agreed upon that based on scientific or archaeological study, one theory, that led humans to move north into Europe is that the Ice Age ended and the planet warmed up.

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how did justinian contribute to the byzantine empire?

one famous byzantine emperor was justinian i. justinian ruled from ad 527 to 565. belisarius was the commander who led these armies in an attempt to win back the old western roman empire. the war effort to take back the western part of the empire forced justinian to raise taxes on the people of the byzantine empire.

explanation:

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i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )