Potassium-40 Is Useful in Determining the Age of a Fossil

question 10

Multiple Choice

Potassium-40 is useful in determining the age of a fossil in samples

• A) less than 25,000 years of age.
• B) of 40,000 to 50,000 years of age.
• C) 300,000 years of age and older.
• D) aged between 50,000 and 100,000 years of age.
• E) aged between 100,000 years and 250,000 years.

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Definitions:

Longitudinal Study

Research that follows the same subjects over a period of time, often years or even decades, to observe changes and developments.

Terman Life Cycle Study

A longitudinal psychological study that began in 1921 by psychologist Lewis Terman, aimed at studying the development and characteristics of gifted children into adulthood.

Cognitive Development

The process by which individuals perceive, think, and understand, through learning, experience, and their senses.

Quasi-experimental Design

An empirical study used to estimate the causal impact of an intervention without random assignment.