A Mass Extinction in Which the Dinosaurs Disappeared from Earth

question 44

Multiple Choice

A mass extinction in which the dinosaurs disappeared from Earth occurred approximately ____ years ago.

• A) 6600
• B) 66,000
• C) 660,000
• D) 66,000,000
• E) 660,000,000

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Definitions:

Anonymity

A way of protecting research participants in that the data collected from them does not identify them in any way. Typically, anonymity is ensured by instructing respondents not to put their names on any information they provide.

Reminder Mail

An email sent to prompt or remind recipients about an upcoming event, deadline, or action that needs to be taken.

Response Rate

The proportion of people who complete and return surveys or respond to invitations, often used as an indicator of the level of engagement or interest in research.

Trend Studies

Studies that measure the same items over time but draw different samples from the population to do so.