Which of the following helps explain why the pyramids have been able to withstand thousands of years of erosion?

Read the paragraph. before the industrial revolution, most goods were made by hand, in peoples’s homes. workers would buy raw materials and complete each step in the process to make a finished product. manufacturing by hand took a long time, and therefore, the prices for finished goods was high. industrialization changed all that. machines took over the manufacturing process. these machines were much more efficient than workers creating items by hand. this meant that many more items could be produced, drastically reducing their price, and making them more affordable for consumers. which would be the best example to use to support the information in this body paragraph?

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

Why did china build the great wall of china?