In the early 1800s, mass production was made possible by
a. the use of interchangeable parts.
b. the use of handmade products.
c. the use of skilled laborers.
d. the use of expensive materials.

The sahel is located on the edge of the sahara desert. a. north b. west c. south d. east

Arguments supporting and opposing the supreme court decision citizens united v. federal election commission identify two reasons why some supporters of the decision consider it a victory for free speech.

Answer the following question in 3-4 complete sentences. explain the arizona highways leak and its outcome.