What is the meaning of opportunity cost? Give an example of this concept

What do the discoveries of shells used in jewelry and a huge dredged canal tell us about the indus valley civilization?

Which of the following shows the correct order of events? catt’s “winning plan,” suffrage in some western states, the nineteenth amendment suffrage in some western states, the nineteenth amendment, catt’s “winning plan” suffrage in some western states, catt’s “winning plan,” the nineteenth amendment catt’s “winning plan,” the nineteenth amendment, suffrage in some western states

In what ways were the rock ‘n’ roll musicians and the beat poets of the 1950s similar and different? support your answer with details from the text.