The Number of People Infected with HIV Worldwide in 2013

question 3

Multiple Choice

The number of people infected with HIV worldwide in 2013 was

• A) 35 thousand.
• B) 3 million.
• C) 300 million.
• D) 35 million.

---

Definitions:

Mississippi River Valley

A significant geographical area in the United States surrounding the Mississippi River, known for its rich soil, diverse ecosystems, and historical importance in trade and settlement.

Mound-Building Tribes

Indigenous peoples of North America who constructed various types of earthen mounds for religious, ceremonial, burial, and elite residential purposes.

Aztec Empire

A Mesoamerican empire based in the Valley of Mexico, known for its rich mythology and cultural achievements, before falling to Spanish conquerors in the 16th century.

Inca Empires

A large empire in South America that flourished in the Andean region from the early 15th century until its conquest by the Spanish in the 16th century, known for its unique architecture, road systems, and terraced farming.