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| The ____________ ratio was predicted by the Big Bang theory and helps establish the rate of expansion for the universe. |
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_______________ (2 words) is how bright a star appears when viewed from Earth. |
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| ______________________ (2 words) includes the 4 main sub categories of Geology, Astronomy, Oceanography, and Meteorology. |
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Definition
The concept that the more distant an object is in space, the farther in its past we are observing its light is called _____________________
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| ________________ is the use of the senses to gather and record information. |
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