According to the World Bank's Classification of Countries' Levels of Per

question 81

Multiple Choice

According to the World Bank's classification of countries' levels of per capita gross national income,

• A) about one-third of the world's population lived in high-income countries in 2007.
• B) less than 20% of the world's population lived in high-income countries in 2007.
• C) the percentage of the world's population living in high-income countries increased significantly between 1997 and 2007.
• D) the percentage of the world's population migrating from middle-income to high-income countries has been increasing since 2000.

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Definitions:

Allen Wrench

Hex-shaped wrenches designed to fit into recessed hex Allen screws.

Hex Drive

A tool or fastener interface characterized by a six-sided shape, commonly used for screws and bolts.

Impact Socket

A type of socket designed to withstand the high torque and vibration generated by an impact wrench, usually made from more malleable materials.

Standard Socket

A tool attachment designed to fit onto a wrench, allowing the wrench to tighten or loosen bolts and nuts of standard sizes.