Why is slash-and-burn farming not a good way to provide more farmland?

Which best describes the idea behind the "invisible hand"? producers decide what to make for consumers, which guides the economy. individuals seeking their own self interest benefit the economy as a whole. government sets policy for producers and consumers, which guides the economy. consumers decide what they need and want to buy, which guides the economy.

Define production possibility curve

What important race leader of the early twentieth century is being described?