The Element Helium Was First Discovered and Identified as a Separate

question 149

Multiple Choice

The element helium was first discovered and identified as a separate element

• A) in natural gas originating underground, from the spectrum emitted from a flame of burning natural gas.
• B) in rocks containing radioactively decaying elements such as uranium.
• C) on the Sun, from the emitted spectrum from its upper atmosphere.
• D) inside meteorites that had come from outer space.

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Definitions:

Alarm Reaction

The initial response in the stress model, involving the activation of the body's defensive mechanisms.

Daily Hassle

Daily hassle refers to the routine challenges or minor irritations that occur day-to-day, contributing to stress.

Stress Appraisal

The process by which individuals evaluate and cope with a stressful situation, determining its significance and how to manage it.

General Adaption Syndrome

A three-stage model (alarm, resistance, exhaustion) describing the physiological changes the body undergoes in response to chronic stress.