The Terrestrial Planets Are Thought to Have Formed by Accreting

question 68

Multiple Choice

The terrestrial planets are thought to have formed by accreting solid planetesimals all with about the same composition. This means

• A) they were initially molten forming an iron core first, then they accreted a silicate crust later.
• B) they were initially molten forming a silicate core first, then they accreted an iron crust later.
• C) they were initially collections of solid particles which melted then differentiated into a high density iron metal core and low density silicate crust.
• D) they were initially collections of solid particles which melted then differentiated into a high density silicate core and low density iron metal crust.

---

Definitions:

Overconfidence

The state of being excessively confident, often leading to underestimating risks, challenges, or the abilities of others.

Too Much Time

Too much time typically refers to scenarios where there is an excess of available time which could lead to inefficiency or procrastination.

General Decision-making Model

A step-by-step approach to making decisions that typically starts with identifying a problem, generating alternative solutions, evaluating the alternatives, and then selecting and implementing the best solution.

Routine Decision

A routine decision involves regularly made choices that follow established procedures or rules, often requiring minimal thought or deliberation.