Question

californias silicon valley; seattle, washington; and austin, texas; are urban areas that have become leaders in the
a. manufacturing industry.
b. high - tech industry.
c. offshore industry.
d. automotive industry.

1. ______ is haze caused by the interaction of ultraviolet solar radiation with chemical fumes from pollutants.

a. acid rain
b. smog
c. desalination
d. eutrophication

1. this type of music combines african rhythms with european harmonies and developed in the united states as a

result of a forced migration from africa?
a. mambo
b. pop
c. jazz
d. heavy metal

1. how do aqueducts help support californias large population?

a. by providing a natural vent for urban smog
b. by bringing fresh water from far away
c. by increasing the housing supply
d. by reducing traffic

1. why is the united states one of the most ethnically diverse countries in the world?

a. the lands which europeans colonized contained powerful kingdoms of many nationalities.
b. the earliest inhabitants arrived some 15,000 years ago.
c. over centuries, immigrants have arrived from many different countries.
d. the british founded the thirteen colonies along the atlantic coast.

Explanation:

• Question 10: Smog is haze caused by the interaction of ultraviolet solar radiation with chemical fumes from pollutants. Acid rain is related to sulfur dioxide and nitrogen oxides reacting with water. Desalination is the process of removing salt from water. Eutrophication is related to excessive nutrients in water bodies.
• Question 11: Jazz combines African rhythms with European harmonies and developed in the US due to the forced migration of Africans (as in the context of African - American musical heritage). Mambo has Latin American roots. Pop music has a more modern, commercial - oriented development. Heavy metal has its own distinct style with roots in rock.
• Question 12: Aqueducts are structures that transport water. In California, they bring fresh water from far - away sources (like the Colorado River Aqueduct) to support the population. They do not provide a vent for smog, increase housing supply, or reduce traffic.
• Question 13: The US is ethnically diverse because over centuries, immigrants have arrived from many different countries. The presence of powerful kingdoms in colonized lands (a) is not the main reason for ethnic diversity. The early inhabitants (b) were Native Americans, and the founding of the thirteen colonies (d) is more about the establishment of the US as a British - influenced entity, not about ethnic diversity.

Answer:

1. b. Smog
2. c. jazz
3. b. by bringing fresh water from far away
4. c. Over centuries, immigrants have arrived from many different countries.