Which of the Following Best Summarizes What We Mean by Dark

question 48

Multiple Choice

Which of the following best summarizes what we mean by dark matter?

• A)matter that we have identified from its gravitational effects but that we cannot see in any wavelength of light
• B)matter that may inhabit dark areas of the cosmos where we see nothing at all
• C)matter consisting of black holes
• D)matter for which we have theoretical reason to think it exists,but no observational evidence for its existence

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Definitions:

Stoicism

An ancient philosophy emphasizing rationality and self-control, teaching that virtue is sufficient for happiness and one should not be controlled by the desire for pleasure or fear of pain.

Ethical Egoism

A moral philosophy that posits individuals should act in their own self-interest because it is the moral thing to do.

Analysis

The process of examining components or structures of a subject to understand its nature or to determine its essential features and their relations.

Hedonism

A philosophy that argues pleasure or happiness is the highest good and ultimate aim in life.