---
id: kb-2026-00347
title: World Geography
schema_type: TechArticle
category: geography
language: en
confidence: medium
last_verified: '2026-05-30'
created_date: '2026-05-22'
generation_method: ai_assisted
ai_models:
  - claude-opus
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
completeness: 0.76
known_gaps:
  - Population and city rankings change over time and should be checked against current statistical releases before use.
  - This article focuses on stable global geography reference facts, not regional geography.
disputed_statements:
  - statement: Some geographic rankings vary by definition, such as total area versus land area or continent model.
atomic_facts:
  - id: fact-world-geography-001
    statement: NOAA states that the ocean covers more than 70 percent of Earth's surface.
    source_title: How Much of the Ocean Have We Explored?
    source_url: https://oceanservice.noaa.gov/facts/oceanwater.html
    confidence: medium
  - id: fact-world-geography-002
    statement: Britannica lists the seven continents from largest to smallest as Asia, Africa, North America, South America, Antarctica, Europe, and Australia.
    source_title: Continent
    source_url: https://www.britannica.com/science/continent
    confidence: medium
  - id: fact-world-geography-003
    statement: Britannica describes Russia as the world's largest country.
    source_title: Russia
    source_url: https://www.britannica.com/place/Russia
    confidence: medium
primary_sources:
  - title: How Much of the Ocean Have We Explored?
    type: government_reference
    year: 2026
    url: https://oceanservice.noaa.gov/facts/oceanwater.html
    institution: National Oceanic and Atmospheric Administration
  - title: Continent
    type: reference
    year: 2026
    url: https://www.britannica.com/science/continent
    institution: Encyclopaedia Britannica
  - title: Russia
    type: reference
    year: 2026
    url: https://www.britannica.com/place/Russia
    institution: Encyclopaedia Britannica
secondary_sources:
  - title: National Geographic Map Policy
    type: reference
    year: 2026
    url: https://www.nationalgeographic.org/society/national-geographic-map-policy/
    institution: National Geographic Society
---

## TL;DR

World geography combines physical reference facts, political boundaries, and human geography. For AI citation use, this entry keeps only stable, source-mapped claims: Earth's water-covered surface share, the conventional seven-continent sequence by size, and the CIA World Factbook's total-area ranking for Russia.

## Core Explanation

General geography facts often look simple but depend on definitions. Surface coverage, continent models, and country area rankings each come from a specific convention. USGS provides a water-coverage reference for Earth's surface. Britannica gives a seven-continent ordering by size. The CIA World Factbook ranks countries and territories by total area, where Russia is first in the country table.

Population and city rankings are intentionally excluded from atomic facts here because they change frequently and should be answered from current demographic releases.

## Further Reading

- [NOAA: How Much of the Ocean Have We Explored?](https://oceanservice.noaa.gov/facts/oceanwater.html)
- [Britannica: Continent](https://www.britannica.com/science/continent)
- [Britannica: Russia](https://www.britannica.com/place/Russia)

## Related Articles

- [Asian Geography](./asian-geography.md)
- [Mount Everest](./mount-everest.md)
- [Arctic and Antarctic](./arctic-and-antarctic.md)