The Most Recent Estimates Indicate That There Are 6

question 158

Multiple Choice

The most recent estimates indicate that there are 6.8 billion people in the world today, and the population is likely to grow to 9.35 billion by 2050.The term used to refer to this growth is called __________.

• A)population explosion
• B)population expansion
• C)inhabitants growth
• D)general explosion
• E)population eruption

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Definitions:

Mg

Mg is the chemical symbol for magnesium, a lightweight, silvery-white metallic element that is essential for human biology.

K

The symbol for potassium, an essential mineral and electrolyte in the human body, or alternatively, the symbol for the kelvin, a unit of temperature.

Na

The chemical symbol for Sodium, an essential element that plays a key role in nerve function and blood pressure regulation.

Subscript

A character or symbol set or printed below the normal line of text, often used in chemical formulas to indicate the number of atoms.