Answer:
The first agricultural revolution occurred during the Neolithic period and was the evolution of humans going from being hunter-gatherers to farmers.
The "second" revolution was because of the new ways people discovered to raise the quality and quantity of farmed goods. Examples include utilizing selective breeding, the plough, and crop rotations.
The correct option is NATIVE AMERICANS.
The Civil Right Act of 1866 was the first one to address the issue of citizenship in USA. The law was meant to protect people of other countries born or brought into the USA. The Act established that all citizens are equal and protected by the laws of the land.
Most of Russia consists of two plains (the East European Plain and the West Siberian Plain), three lowlands (the North Siberian, the Central Yakutian and the East Siberian), two plateaus (the Central Siberian Plateau and the Lena Plateau), and two systems of mountainous areas (the East Siberian Mountains in far northeastern Siberia and the South Siberian Mountains along the southern border).
