According to the Text,the World's Population in 2010 Is Approximately

question 56

Multiple Choice

According to the text,the world's population in 2010 is approximately __________.

• A)750 million
• B)2 billion
• C)6.6 billion
• D)23 billion
• E)138 billion

---

Definitions:

Desert Varnish

A thin, dark film or coating of iron and manganese oxides, silica, and other materials; formed by prolonged exposure at the surface; synonym rock varnish.

Desert Pavement

A natural concentration of pebbles and other rock fragments that mantle a desert surface of low relief.

Cross-Cutting Relations

A geological principle stating that any geologic feature that cuts across another feature must be younger than the feature it cuts.

Inclusions

Pieces of one rock unit that are enclosed within another rock unit, often used in geology to determine the relative age of rock layers.