How Many Megacities (Those with 5 Million or More Inhabitants)

question 49

Multiple Choice

How many megacities (those with 5 million or more inhabitants) were there in 1950, and how many do estimates suggest there will be by 2017?

• A) Zero, seventeen
• B) Four, twenty
• C) Eight, fifty-nine
• D) Twelve, eighty-four

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Definitions:

Intramembranous

Pertaining to a type of bone development in which bones form directly within connective tissue without first being cartilage.

Diaphysis

The core segment of an elongated bone.

Epiphyseal Lines

The remnants of the epiphyseal plate in long bones, seen in adults, indicating the previous site of longitudinal growth during childhood and adolescence.

Articular Cartilage

The smooth, white tissue that covers the ends of bones where they come together to form joints.