Young Stars Are Sometimes Observed to Have Multiple Debris Disks

question 73

Multiple Choice

Young stars are sometimes observed to have multiple debris disks inclined relative to each other. This phenomenon is a result of

• A) winds from the young star.
• B) variability from an active young star.
• C) the gravitational influence of massive planets in the system.
• D) collisions between asteroids.

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Definitions:

Proximal Stimulation

Proximal stimulation refers to the sensory information received directly from stimuli that are in close proximity to the sensory receptors.

Perception

The process by which individuals organize and interpret sensory information to understand the environment.

Sensation

The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.

Grapheme-Colour Synesthesia

A type of synesthesia in which the person associates numbers and letters with the sensation of seeing colors.