Which statements accurately describe the Doppler effect? Select three options.
~It is used to learn about the behavior of the universe.
~It was used by Hubble to measure velocities of galaxies.
~It indicates galaxy motion through light wavelengths.
``It indicates a galaxy moving toward Earth through red shift.
``It indicates a galaxy moving away from Earth through blue shift.
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Which statements accurately describe the Doppler effect? Select three options.
~It is us...
~It is us...
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