What Is the Estimated Number of Extant Species on Earth

question 26

Multiple Choice

What is the estimated number of extant species on Earth?

• A) 1,000 to 50,000
• B) 50,000 to 150,000
• C) 500,000 to 1,000,000
• D) 10,000,000 to 100,000,000
• E) 5 billion to 10 billion

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Definitions:

Consumer Revolution

A period marked by an increase in the consumption and variety of luxury goods and products by individuals from different economic classes.

Seven Years' War

A global conflict fought between 1756 and 1763, involving most of the great powers of the time and affecting Europe, North America, Central America, the West African coast, India, and the Philippines.

French and Indian War

A conflict between Britain and France (1754-1763) in North America, part of a larger global contest, which also involved Native American tribes aligned with each side.

George Washington

The first President of the United States (1789-1797), commander-in-chief of the Continental Army during the American Revolutionary War, and one of the Founding Fathers of the United States.