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7
Question 7 is based on the passage below. Select one answer choice.
Evidence indicates that the wavelengths emitted by distant stars in the galaxy are longer than would be expected, given the atmospheres of the stars. Most astrophysicists agree that a longer wavelength emitted by a star signifies an increased distance. From this information, scientists claim that the universe is expanding.
Question 7 is based on the passage below. Select one answer choice.
Evidence indicates that the wavelengths emitted by distant stars in the galaxy are longer than would be expected, given the atmospheres of the stars. Most astrophysicists agree that a longer wavelength emitted by a star signifies an increased distance. From this information, scientists claim that the universe is expanding.
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