Which of These Mechanisms Is Thought to Be Ineffective and Inefficient

question 324

Multiple Choice

Which of these mechanisms is thought to be ineffective and inefficient in the triggering of star birth in molecular clouds?

• A) gravitational contraction of a hot gas cloud
• B) collisions between two interstellar clouds
• C) supernova explosions and the resultant shock waves
• D) radiation pressure from the intense UV radiation from hot stars

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Definitions:

Performance

The act or process of carrying out a task or function, often measured against preset standards.

Preparedness

The state of being ready and well-prepared for various situations or emergencies.

Taste Aversions

A learned response to eating spoiled or toxic food, leading to nausea or avoidance, even at the smell or thought of the food.

Seligman

A psychologist best known for his work on learned helplessness, positive psychology, and well-being.