Although Most Meteorites Have Ages Around 4

question 30

Multiple Choice

Although most meteorites have ages around 4.5 billion years, a small subset has ages around 1.3 billion years.What caused the substantial difference in age between these two populations of meteorites?

• A) These meteorites just happened to form later than most meteorites.
• B) Not all meteorites hit Earth in the early Solar System.We should expect to find younger meteorites as more meteors pass through the atmosphere.
• C) The younger meteorites were created when a protoplanet collided with Earth, creating the Moon.The leftover fragments became meteorites.
• D) These meteorites were thrown into space after an impact with Mars and afterward some happened to collide with Earth.
• E) The younger ones are the result of comets repeatedly passing close to the Sun, melting their surfaces and making them appear younger.

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Definitions:

Dividend Yield

Dividend yield is a financial ratio that shows how much a company pays out in dividends each year relative to its stock price.

Capital Gains Yield

The percentage increase in the market price of an asset over time, excluding dividends.

Annual Dividend

The total dividend payments issued to shareholders by a company in a year.

Risk Premium

The return in excess of the risk-free rate of return that an investment is expected to yield, compensating investors for taking on additional risk.