Astronomy questions 2
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How are wavelength, frequency, and energy related for photons of light?
Longer wavelength means lower frequency and lower energy.
Without the greenhouse effect on Earth it would be colder for liquid water on Earths surface?
The fact that we always see the same face of the Moon tells us that
the Moons rotation period is the same as its orbital period
the compositions of the solar system was 98%
hydrogen and helium
Which of the following correctly list our "cosmic address" from small to large ?
Earth, Solar system, Milky Way Galaxy, Local Group, Local supercluster
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