A Credible Speaker Is

question 49

Multiple Choice

A credible speaker is

• A)one whom the audience sees as a believable and competent.
• B)one who has a magnetic stage presence and quick wit.
• C)always the top-most authority on the subject at -hand.
• D)always has several decades of speaking experience

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Definitions:

Methane

The simplest alkane and hydrocarbon, with the formula CH4, it is a significant component of natural gas and a potent greenhouse gas.

Propagation Event

In chemical kinetics, a step in a chain reaction where reactive intermediates react with stable molecules to produce new reactive intermediates and propagate the chain.

UV Light

Ultraviolet light, a form of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays.

Ethane

A hydrocarbon with the formula C2H6, consisting of two carbon atoms single-bonded together, with three hydrogen atoms bonded to each carbon.