What Do We Mean by Accretion in the Context of Planet

question 72

Multiple Choice

What do we mean by accretion in the context of planet formation?

• A)the solidification of ices, rocks, and metal from the gas of the solar nebular
• B)the growth of planetesimals from smaller solid particles that collided and stuck together
• C)the growth of the Sun as the density of gas increased in the center of the solar nebula
• D)the formation of moons around planets

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Definitions:

Sigmund Freud

Sigmund Freud, an Austrian neurologist, originated psychoanalysis, a clinical approach to treat mental disorders through conversations between a patient and a psychoanalyst.

Joseph Wolpe

A psychiatrist known for developing systematic desensitization, a method used in psychotherapy to overcome phobias and other anxiety disorders.

Aaron Beck

A psychiatrist widely regarded as the father of cognitive therapy, his research significantly contributed to the understanding and treatment of depression.

Id-Ego-Superego Conflicts

In psychoanalytic theory, the struggle among these three components of the human personality for dominance.