An Extremely Sensitive Method Has Recently Been Developed for Measuring ${ }_{6}^{14} \mathrm{C}$

question 3

Multiple Choice

An extremely sensitive method has recently been developed for measuring ${ }_{6}^{14} \mathrm{C}$ concentrations in organic materials.What is this method?

• A) acid titration
• B) nuclear magnetic resonance
• C) gas chromatography
• D) atomic absorption spectrometry
• E) mass spectrometry

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Definitions:

Non-Renewable

Refers to natural resources or sources of energy that cannot be replenished within a human life span, such as fossil fuels and minerals, making them finite and exhaustible.

Fertile Soil

A type of soil that contains a rich supply of nutrients and minerals conducive to growing plants.

Groundwater

Water located beneath the earth's surface in soil pore spaces and in the fractures of rock formations, a crucial source of fresh water for drinking, agriculture, and industry.

Growth Rate

The rate at which the number of individuals in a population increases in a given time period as a result of birth, death, and migration.