It Is Generally the Case That Most Great Scientists Have

question 132

Multiple Choice

It is generally the case that most great scientists have their ground-breaking ideas when they are in early to middle adulthood, but rarely when they are older. What might explain this fact?

• A) The brain shrinks with age.
• B) General intelligence declines steeply after middle adulthood.
• C) Fluid intelligence peaks in middle adulthood, and then declines in later life.
• D) Crystallized intelligence peaks in middle adulthood, and then declines in later life.

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Definitions:

Production Possibilities

A graph or curve depicting the maximum output combinations of two goods that can be produced with available resources and technology.

Circular-Flow Diagram

A diagram that represents the transactions in an economy by two kinds of flows around a circle: flows of physical things such as goods or labor in one direction and flows of money to pay for these physical things in the opposite direction.

Output

In economics, output refers to the total amount of goods or services produced by a firm or country.

Factor of Production

An input used in the production of goods and services, such as land, labor, capital, and entrepreneurship.