Humans can detect the odor of 1 one-millionth of a milligram of vanilla in a liter of air.

Name: Humans can detect the odor of 1 one-millionth of a milligram of vanilla in a liter of air.
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Question

Quizplus · Accepted Answer

This statement is true. Humans have a very sensitive sense of smell and can detect certain odors at very low concentrations. The ability to detect 1 one-millionth of a milligram of vanilla in a liter of air is an example of this sensitivity.

Humans Can Detect the Odor of 1 One-Millionth of a Milligram