Figure 12-14(for the Following Questions)

question 26

Multiple Choice

  Figure 12-14(for the following questions)
Examine the accompanying graph. Harlow Shapley did not know that there are two categories of Cepheid variables; he was only familiar with those such as d Cepheii. Because of this, some of the Cepheid variables he observed ____.

• A) were dimmer than he expected
• B) were brighter than he expected
• C) had a longer pulsation period than he expected
• D) had a shorter pulsation period than he expected
• E) were RR Lyrae variables

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Definitions:

Risky Behavior

Actions that expose an individual to danger or harm, often involving a disregard for safety.

Positive Self-Concept

Describes a person's overall view of themselves as capable, worthy, and competent, contributing to positive self-esteem.

Adolescence

A developmental stage that marks the transition from childhood to adulthood, characterized by significant physical, psychological, and social changes.

Popular Crowd

A social group within a larger community, often viewed as having high status or desirability by peers.