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Questions and Answers
How can we detect exoplanets indirectly?
How can we detect exoplanets indirectly?
- By detecting planets using transit or eclipse methods
- By taking pictures and spectra of planets
- By measuring a star's position in the sky (correct)
- Through gravitational lensing
What process allows nuclear energy to escape the sun?
What process allows nuclear energy to escape the sun?
- Gravitational equilibrium (correct)
- Radiative transfer
- Thermal conduction
- Magnetic repulsion
What prevents the pressure buildup in a contracting gas cloud during star formation?
What prevents the pressure buildup in a contracting gas cloud during star formation?
- Conversion of thermal energy into infrared and radio photons (correct)
- Formation of dark clouds
- Stronger contraction due to gravity
- Increased gas density
What causes solar flares on the Sun?
What causes solar flares on the Sun?
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What characteristic defines a star being on the main sequence?
What characteristic defines a star being on the main sequence?
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How can we measure exoplanets' atmospheric properties?
How can we measure exoplanets' atmospheric properties?
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What is a common characteristic of comets in the Oort cloud?
What is a common characteristic of comets in the Oort cloud?
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Why do asteroids beyond Jupiter's orbit appear to be few?
Why do asteroids beyond Jupiter's orbit appear to be few?
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What distinguishes the tail of a comet?
What distinguishes the tail of a comet?
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Where do most observed asteroids reside in the solar system?
Where do most observed asteroids reside in the solar system?
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What stops Pluto from being classified as a planet?
What stops Pluto from being classified as a planet?
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What plays a role in shaping comets' tails?
What plays a role in shaping comets' tails?
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