Exam 2 Crossword

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Across
  1. 4. Colorful __________ form by convection of air inside jovian planets.
  2. 6. Form by impact of meteorites on jovian moons
  3. 7. Spontaneous relaxation of an unstable nucleus; Releases energy that powers geological activity inside planets(2 words).
Down
  1. 1. __________ gas transmits visible light but absorbs infrared light.
  2. 2. Formed when jovian planets ejected nearby forming planetesimals (2 words)
  3. 3. Potential energy inside every mass (2 words).
  4. 5. __________ planets failed to clear the space around them.