Why Is It Believed That Life Cannot Evolve on a Planet

question 30

Multiple Choice

Why is it believed that life cannot evolve on a planet that orbits a spectral type A, B, or O star

• A)These stars produce too much infrared radiation which would destroy carbon-based organisms.
• B)These stars have very small life zones.
• C)These stars are not capable of producing planets.
• D)These stars do not remain on the main sequence long enough for life to evolve.
• E)These stars take too long to form.

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Definitions:

Foreign Currency Option

A financial derivative that gives the holder the right, but not the obligation, to exchange money denominated in one currency into another currency at a pre-agreed exchange rate on a specified date.

Fair Value

The cost at which one could sell an asset or assume a liability in a structured exchange with market participants on the valuation date.