Choose the One Alternative That Best Completes the Statement or Answers

question 53

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
-A fossilized leaf contains 18% of its normal amount of carbon 14. How old is the fossil (to the nearest year) ? Use 5600 years as the half-life of carbon 14.

• A) 35,538
• B) 1,600
• C) 13,829
• D) 23,309

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Definitions:

Classical Conditioning

A learning process that involves pairing a previously neutral stimulus with an unconditioned stimulus to elicit a conditioned response.

Phobias

An intense, irrational fear of specific objects, situations, or activities that poses little to no actual danger.

Exposure Therapy

A psychological treatment method that involves confronting feared or traumatic memories, objects, or situations directly to reduce their associated anxiety.

Obsessive-Compulsive Disorder

A psychiatric condition marked by persistent, intrusive thoughts (obsessions) and repetitive actions (compulsions).