Which of the following was not one of the reasons ancient egypt prospered for such a long period of time in the nile river valley?

the heightened emotion and nature images.

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.

d is the correct answer