Tucson (/tusn/ /tusn/) is a city and the county seat of Pima County, Arizona, United States, and home to the University of Arizona. The 2010 United States Census put the population at 520,116, while the 2013 estimated population of the entire Tucson metropolitan statistical area (MSA) was 996,544. The Tucson MSA forms part of the larger Tucson-Nogales combined statistical area (CSA), with a total population of 980,263 as of the 2010 Census. Tucson is the second-largest populated city in Arizona behind Phoenix, both of which anchor the Arizona Sun Corridor. The city is located 108 miles (174 km) southeast of Phoenix and 60 mi (97 km) north of the U.S.-Mexico border. Tucson is the 33rd largest city and the 59th largest metropolitan area in the United States. Roughly 150 Tucson companies are involved in the design and manufacture of optics and optoelectronics systems, earning Tucson the nickname Optics Valley.

Tucson was probably first visited by Paleo-Indians, known to have been in southern Arizona about 12,000 years ago. Recent archaeological excavations near the Santa Cruz River have located a village site dating from 2100 BC.[citation needed] The floodplain of the Santa Cruz River was extensively farmed during the Early Agricultural period, circa 1200 BC to AD 150. These people constructed irrigation canals and grew corn, beans, and other crops while gathering wild plants and hunting. The Early Ceramic period occupation of Tucson saw the first extensive use of pottery vessels for cooking and storage. The groups designated as the Hohokam lived in the area from AD 600 to 1450 and are known for their vast irrigation canal systems and their red-on-brown pottery.[citation needed]

1. what is the second largest city in Arizona by population?
2. what is its nickname?
3. how many companies manufacture or design optics there?
4. what county is Tucson in?
5. what are the Hohokam known for?
6. do they also make pottery?
7. what kind of crops did early agricultural people grow?
8. where is the university of arizona?
9. how far is it from Phoenix?
10. how close is it to Mexico?
11. who visited Tucson first?
12. what is the 2010 population estimated to be?
13. how far back is the date of the village that archaeologists found?

Provide a numbered list of answers.
1. Tucson
2. Optics Valley
3. 150
4. Pima County,
5. vast irrigation canal systems
6. yes
7. corn and beans
8. Tucson
9. 108 miles (174 km) southeast of Phoenix
10. 60 mi (97 km) north of the U.S.-Mexico border.
11. Paleo-Indians,
12. 520,116
13. 2100 BC