When the Solar System Was Forming, the Building Blocks from Which

question 36

Multiple Choice

When the solar system was forming, the building blocks from which the protoplanets gathered together were the:

• A) gold, iron, and nickel atoms
• B) planetesimals (a few km to tens of km wide)
• C) giant accretion grains about the size of Mars
• D) extremely hot clouds of gas torn out of the Sun, which was already shining brilliantly
• E) pure water ice crystals, about the size of a snowflake

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Definitions:

Economic Efficiency

The optimal allocation of resources within an economy, where goods and services are produced and distributed in a manner that maximizes societal welfare.

Sufficient Competition

A market situation where there are enough participants to ensure efficient and competitive pricing.

Output

The amount of goods or services produced by a company, industry, or economy within a specified period.

Legal Restrictions

Rules and regulations imposed by law that limit or define the actions individuals or organizations can perform.