What is a duty? a vote a tax a law a crop

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?

Why was galileo galilei brought before the inquisition? for insisting that earth stands still at the center of the universe for proving that planets move in elliptical orbits for putting forth evidence that earth moves around the sun for suggesting that the sun is a star

In what ways did the french revolution produce freedom? what were the limits of this freedom?