The Current World Population of 6 Billion Will Double in About

question 133

Multiple Choice

The current world population of 6 billion will double in about:

• A) 47 years.
• B) 90 years.
• C) 147 years.
• D) 197 years.

---

Definitions:

Tympanic Membrane

The tympanic membrane, or eardrum, is a thin layer of tissue that separates the external ear from the middle ear and vibrates in response to sound waves.

Amber-Yellow

A color descriptor typically referring to a medium to dark shade of yellow, often used in health to describe fluids or conditions.

Air Bubbles

Small pockets of air trapped within a liquid or solid material, often visible in fluids or when substances are mixed together.

Tympanostomy Tubes

Small tubes inserted into the eardrum to allow air to enter the middle ear, used to treat recurrent ear infections or fluid buildup.