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What percentage of visible matter is made of Hydrogen?

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
What percentage of visible matter is made of Hydrogen?
Continue reading “What percentage of visible matter is made of Hydrogen?”…

List the Eras of the Big Bang Theory in chronological order….

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
List the Eras of the Big Bang Theory in chronological order. ____ era ____ era ____ era ____ era ____ era ____ era ____ era ____ era
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What is the observed temperature of the Cosmic Microwave Bac…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
What is the observed temperature of the Cosmic Microwave Background (CMB)?
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The letters G U T  from the GUT Era stand for Grand Unified…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
The letters G U T  from the GUT Era stand for Grand Unified Theory. This theory explains how 3 of the fundamental forces are indistinguishable. Which three forces does it describe?
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Below you will find 5 numbered images. Match the image numbe…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Below you will find 5 numbered images. Match the image number with the correct galaxy classification. 1–     2– 3–     4– 5–
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Examine the spectra of four galaxies compared to the laborat…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Examine the spectra of four galaxies compared to the laboratory spectrum.  According to the Hubble Law, which galaxy is most distant? 
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Below you will find 5 numbered images. Match the image numbe…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Below you will find 5 numbered images. Match the image number with the correct galaxy classification. 1–     2– 3–     4– 5–
Continue reading “Below you will find 5 numbered images. Match the image numbe…”…

Which point on the Hertzprung-Russell diagram represents the…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Which point on the Hertzprung-Russell diagram represents the main sequence star with the longest lifetime?
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Please match each moon to the planet it orbits. Some planets…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Please match each moon to the planet it orbits. Some planets may be used more than once or maybe not at all.
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Astrology (not astronomy) is considered a pseudoscience beca…

Posted on: August 19, 2025 Last updated on: August 19, 2025 Written by: Anonymous
Astrology (not astronomy) is considered a pseudoscience because
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