What Is Surprising About the Extrasolar Planets That Have So

question 101

Multiple Choice

What is surprising about the extrasolar planets that have so far been discovered, in comparison to our solar system?

• A) More than half of the extrasolar planets have strong lines of molecular oxygen in their spectra.
• B) The majority of the extrasolar planets rotate much faster than the planets in our solar system.
• C) Many of the extrasolar planets are giant planets like Jupiter, orbiting at distances characteristic of terrestrial planets like Earth, where giant planets cannot form.
• D) Many of the extrasolar planets are terrestrial planets like Earth, orbiting at distances characteristic of giant planets like Jupiter, where terrestrial planets cannot form.

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Definitions:

Analgesia

A reduced sensitivity to painful events.

Pain

An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.

Conditioned Stimulus Preexposure Effect

A phenomenon where exposure to the conditioned stimulus prior to pairing it with the unconditioned stimulus decreases the effectiveness of conditioning.

Conditioning

The process of learning associations between environmental stimuli and behavioral responses, fundamental to behavioral psychology.