Refer to the Following Figure for Questions 53, 54, and 55

question 45

Multiple Choice

Refer to the following figure for questions 53, 54, and 55.   Letter "B" designates the ____, which allowed for an increase in human population growth.

• A) bubonic plague
• B) domestication of plants and animals
• C) industrial and scientific revolutions
• D) discovery of America
• E) emergence of agriculturally based urban societies

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Definitions:

Ridge

A long, narrow elevated landform often formed by the uplift of the surrounding area or by tectonic activities.

Plucking

A glacial process where rocks and other materials are pulled away from the earth and incorporated into the moving glacier, mainly due to the freezing of water into cracks.

Abrasion

The mechanical scraping of a rock surface by friction between rocks and moving particles during their transport by wind, glacier, waves, gravity, or running water.

Snowflakes

Ice crystals that form in clouds when water vapor freezes, creating unique patterns that fall to the ground as snow.