In the Context of Epidemiology, What Does It Mean to Describe

question 20

Multiple Choice

In the context of epidemiology, what does it mean to describe the world as "smaller"?

• A) The size of Earth has been shrinking since it formed 4.56 billion years ago.
• B) The size of the world's population is larger than Earth can sustain.
• C) Humans can travel from continent to continent within hours or days.
• D) The continents are shifting in a way to make the land on Earth smaller.

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Definitions:

Present Value

The current value of a future amount of money or stream of cash flows, discounted at a particular interest rate.

Simple Interest

Interest assessed only on the principal sum, or on the part of the principal that still needs to be repaid.

Principal Amount

The original sum of money borrowed in a loan or invested, distinct from interest or profit earned.

Invested

To be invested refers to the allocation of resources, such as capital or time, into a particular venture, asset, or effort with the expectation of generating a future return.