The Reason That Worlds Like the Earth Are Differentiated Is

question 39

Multiple Choice

The reason that worlds like the Earth are differentiated is that

• A) the heat of the Sun vaporized much of their solid material early on
• B) the heaviest chunks that hit early on were able to bore through solid rock to the center
• C) the continuing impacts on a growing protoplanet eventually melted the entire body
• D) large amounts of hydrogen and helium collect around such planets a little later in their history
• E) planetesimals with different types of composition hit at different times, with the heaviest ones hitting first

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Definitions:

Introspection

Reviewing and reflecting on one's own mental and emotional experiences.

Edward Titchener

A British psychologist who founded structuralism, a school of thought aimed at analyzing the adult mind in terms of the simplest definable components.

Functionalism

A theoretical perspective that views society as a complex system whose parts work together to promote stability and integration.

Empiricism

The theory that all knowledge is derived from sense-experience and observation.