Answer:
Scientists use Scientific Notation to write or display very small or very large numbers.
Explanation:
Serfs/Peasants would live on the protected land of the lord's manor in exchange for food and goods. The serfs/peasants basically fueled the manor and created self sufficiency, to the point where some lords even forbade Serfs/Peasants to leave their estate.
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The economic systems of north Korea and China are similar because both systems have a centrally planned economy.
Answer: The Ishtar Gate, named after a Mesopotamian goddess of love and war, was one of eight gateways that provided entry to the inner city of Babylon during the reign of Nebuchadnezzar II (reign 605-562 B.C.). It was decorated with glazed blue bricks that depicted alternating rows of bulls and dragons.