1. Petroleum became extremely valuable _____.

a. because it was hard to make
b. because it was used for fuel
c. when oil could be pumped
d. when jobs came to the region

2. Cattle came to the Southwest with _____.

a. African Americans
b. Spanish settlers
c. Native Americans
d. French traders

3. New Mexico is known for computers and technology. The state’s nickname is _____.

a. Silicon Mesa
b. New Mexico Mesa
c. Solar Energy Plateau
d. Computer Chip Central

4. The Southwest's sunny climate makes it a great place to research _________.

a. nuclear energy
b. alternative fuels
c. solar energy
d. hydroelectric power

5. Space ships launch from the Johnson Space Center in ___________.

a. Houston, Texas
b. Phoenix, Arizona
c. Albuquerque, New Mexico
d. Tulsa, Oklahoma