If You Were Studying the Geologic Period When the Majority

question 14

Multiple Choice

If you were studying the geologic period when the majority of today's coal was produced,you would be studying which period?

• A)Devonian
• B)Cretaceous
• C)Jurassic
• D)Silurian
• E)Carboniferous

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Definitions:

Amplifier

A device on an electrocardiograph that enlarges the ECG impulses.

Electrical Impulses

Quick bursts of electrical activity that carry messages within the body, especially within the nervous system.

ECG Machine

A diagnostic tool that records the electrical activity of the heart over a period of time, used to detect heart diseases and monitor heart health.

Galvanometer

An instrument that measures current by electromagnetic action.