A scientist is studying the average speed and fastest recorded speed of four creatures. His results, in miles per hour, are shown in the table below. For which creature is the difference between average speed and fastest speed the greatest?

Werewolf
Phoenix
Mermaid
Centaur
They are all the same.

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Which of the following best describes the difference between “autobiography” and “memoir”? a. autobiography is written about the author's own interpretation of events; memoir is a written interpretation of events. b. memoir covers a particular time in the writer’s life or recounts life events around one or two themes; autobiography covers the entire story of the author's life and has multiple themes. c. autobiography covers the entire story of the writer's life and has multiple themes; memoir is a shorter written work with one theme. d. autobiography covers entire story of the writer's life and has multiple themes; memoir is the writer’s random memories about past experiences.

Explain how you might determine the rate of weathering on a sample rock