It Is More Difficult to Determine the Total Amount of Dark

question 53

Multiple Choice

It is more difficult to determine the total amount of dark matter in an elliptical galaxy than in a spiral galaxy.Why?

• A)Elliptical galaxies lack the atomic hydrogen gas that we use to determine orbital speeds at great distances from the centers of spiral galaxies.
• B)Elliptical galaxies contain much less dark matter than spiral galaxies,so it's much more difficult to measure.
• C)Stars in elliptical galaxies are dimmer,making them harder to study.
• D)cannot observe spectral lines for elliptical galaxies.

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Empathy

The ability to understand and share the feelings of another, often leading to a deeper connection and emotional support.

Cognitive Dissonance Theory

A psychological theory suggesting that individuals experience discomfort when holding two or more contradictory beliefs, attitudes, or values, leading them to attempt to reduce the dissonance.

Theory of Planned Behavior

A theory in psychology that forecasts a person's likelihood of performing a specific action at a given time and location, taking into account their attitudes, societal expectations, and their sense of control over the behavior.

Psychological Reactance

A motivational reaction to offers, persons, rules, or regulations that threaten or eliminate specific behavioral freedoms.