Please help with this one!

South America is located southwest of Northern Africa. Australia, which is both a country and a continent, is located south of southeastern asia. Mexico is a country of North America, which is located northwest of Africa.

Explanation:

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.

answer(c) carved on a babylonian clay tablet that showed earth as a flat circular disk;