Answer:scholar-bureaucrats at the top, because they had the knowledge and wisdom to maintain social order;
Explanation:
That depends what you mean by early, do you mean the civilizations of Egypt or Mesopotamia or Israel.
Global warming is the process of increasing the average temperature of the Earth's oceans and atmosphere, which is massified by greenhouse gas-intensifying gases from a range of human activities, especially the burning of fossil fuels and changes in land use, like deforestation. While climate change includes warming and the “side effects” of warming.
Answer: Johnson, Truman, Buchanan, Kennedy, and F.D. Roosevelt.