Which of the Following Are Evidence for an Asteroid Impact

question 21

Multiple Choice

Which of the following are evidence for an asteroid impact being the cause of the extinction of the dinosaurs 65 million years ago (as well as 75% of all species alive at the time) ?

• A)a worldwide layer of the element iridium in 65 million year old rocks
• B)no dinosaur fossils being present in rocks younger than 65 million years old
• C)a buried crater more than 100 km across in the Gulf of Mexico
• D)all of the above

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Definitions:

Just-world Hypothesis

The belief in a fair world where individuals get what they deserve, serving as a way to rationalize inequality and misfortune.

Reciprocity Model

A social psychology concept that suggests individuals are more likely to help others who have helped them in the past.

Peter Principle

A concept in management that suggests people in a hierarchy tend to rise to their "level of incompetence."

Premack Principle

A psychological principle suggesting that more probable behaviors can reinforce less probable behaviors if the more probable behavior is performed after the less probable one.