Dust Grains Form Within a Protoplanetary Disk Because

question 36

Multiple Choice

Dust grains form within a protoplanetary disk because:

• A) binary accretion begins.
• B) the interstellar cloud collapses and heats up.
• C) gas accretes onto large protoplanets, clearing out the medium.
• D) the disk cools through radiation.

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Definitions:

Presbycusis

Age-related hearing loss, typically occurring in both ears, progressing gradually as a person ages.

-cusis

A suffix pertaining to hearing, used in medical terms related to hearing conditions.

Auditory Nerve

The nerve that carries signals from the inner ear to the brain, enabling hearing.

Cranial Nerve

One of twelve nerves that emerge directly from the brain (not the spinal cord), responsible for conveying sensory and motor information to and from the head and neck.