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the claim

Nitrogen makes up about 78% of Earth's atmosphere.

the verdict
SUPPORTED
the evidence backs this
Recorded sources
7 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that nitrogen makes up about 78% of Earth's atmosphere?

Yes. Multiple reference and textbook sources state that nitrogen makes up about 78% of Earth's atmosphere, by volume or mole fraction.

Verdict: SUPPORTED · 7 sources for, 0 against · Last checked

Evidence for · 7
Atmosphere of Earth
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Atmosphere of Earth. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Atmosphere_of_Earth

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More for · 6
Nitrogen
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Nitrogen. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Nitrogen

MeSH: Nitrogen
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MeSH: Nitrogen. (n.d.). meshb.nlm.nih.gov. https://meshb.nlm.nih.gov/record/ui?ui=D009584

Nitrogen solubility in Fe-bearing bridgmanite and its implications for nitrogen segregation in Earth's deep magma ocean
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Nitrogen solubility in Fe-bearing bridgmanite and its implications for nitrogen segregation in Earth's deep magma ocean. (n.d.). cir.nii.ac.jp. https://doi.org/10.1016/j.chemgeo.2025.123154

LibreTexts: 6.08: Nitrogen Cycle
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LibreTexts: 6.08%3A Nitrogen Cycle. (n.d.). bio.libretexts.org. https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Introductory_Biology_(CK-12)/06%3A_Ecology/6.08%3A_Nitrogen_Cycle

Herbivory in Relation to Plant Nitrogen Content
1980
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Herbivory in Relation to Plant Nitrogen Content. (1980). doi.org. https://doi.org/10.1146/annurev.es.11.110180.001003

Visualizing Weather and Climate
2012
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Anderson, B. & Strahler, A. H. (2012). Visualizing Weather and Climate. play.google.com. https://play.google.com/store/books/details?id=3QwcAAAAQBAJ&source=gbs_api

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