Mars Rovers Have Uncovered Lava Rocks Containing Olivine and Pyroxene

question 131

Multiple Choice

Mars rovers have uncovered lava rocks containing olivine and pyroxene. What conclusion has been drawn from this?

• A) These rocks dissolve quickly in water, thus Mars must have been dry for several billion years.
• B) These rocks contain water, so the surface must have been submerged at some time during the last billon years.
• C) These rocks contain microfossils that might be the remnants of living organisms. This greatly increases expectations of past life on Mars.
• D) These rocks form at high temperature, suggesting that Mars formed closer to the Sun than it is now.

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Definitions:

Ratification

The official approval of a contract or agreement, making it valid and enforceable.

Exceeded Authority

Acting beyond the powers or rights granted by a legal or organizational authority, potentially leading to unauthorized or invalid actions.

Apparent Authority

A situation where a person appears to have been given the power by a company or another person to act on their behalf, even if no actual authority was granted.

Disclosed Principal

A situation in a business arrangement where the identity of the principal is known to all parties involved in the transaction.