What Do Astronomers Consider Heavy Elements

question 71

Multiple Choice

What do astronomers consider heavy elements?

• A)elements that are heavier than iron
• B)elements that are heavier than carbon
• C)elements that are heavier than hydrogen
• D)elements that are heavier than uranium
• E)all elements besides hydrogen and helium

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Definitions:

Classical Conditioning

Gaining understanding through linking an environmental stimulus with a stimulus that occurs inherently.

Conditioned Stimulus

A previously neutral stimulus that, after being paired with an unconditioned stimulus, eventually triggers a conditioned response.

Classical Conditioning

A conditioning technique where two stimuli are repeatedly connected; the reaction, at first prompted by the second stimulus, ultimately becomes prompted by only the first stimulus.

Unconditioned Stimulus (US)

A stimulus that naturally triggers a response without the need for prior learning.