All of the Descriptions EXCEPT ONE Is Believed to Be

question 84

Multiple Choice

All of the descriptions EXCEPT ONE is believed to be a possible mechanism that can trigger the collapse of a cloud of gas and dust to form a star.Which is the exception?

• A) Stellar winds may compress nearby gas and dust clouds.
• B) A nearby supernova can compress nearby gas and dust clouds.
• C) Clouds can collide and compress each other.
• D) Radiation pressure from the Cosmic Microwave Background can compress clouds of gas and dust.

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Definitions:

Naturalistic Observation

A research method in which subjects are observed in their natural environment without interference from the researchers.

Assembly Line

A manufacturing process in which parts are added to a product in a sequential manner to create a finished product more efficiently.

Experimental Method

A research methodology that involves the manipulation of one variable to determine its effect on another variable, often with the use of control and experimental groups.

Precise Control

The ability to manage or direct with great accuracy and exactness.