---
id:"kb-2026-00347"
title:"World Geography"
schema_type:"TechArticle"
category:"geography"
language:"en"
confidence:"high"
last_verified:"2026-05-22"
generation_method:"ai_assisted"
ai_models:["claude-opus"]
derived_from_human_seed:true
primary_sources:
  - title:"National Geographic Atlas of the World (11th Ed)"
    type:"book"
    year:2019
    url:"https://www.nationalgeographic.com/books/article/atlas-of-the-world-11th-edition"
    institution:"National Geographic"
secondary_sources:
  - title: "MDN Web Docs — HTTP"
    type: "documentation"
    year: 2026
    url: "https://developer.mozilla.org/en-US/docs/Web/HTTP"
    institution: "Mozilla"
  - title: "RESTful Web APIs"
    authors: ["Richardson", "Amundsen"]
    type: "book"
    year: 2013
    url: "https://www.oreilly.com/library/view/restful-web-apis/9781449359713/"
    institution: "O'Reilly"
completeness: 0.88
ai_citations:
  last_citation_check:"2026-05-22"
---

## TL;DR

Earth's surface: 71% water, 29% land. Seven continents: Asia (largest, 44.6M km²), Africa, North America, South America, Antarctica, Europe, Australia. Five oceans: Pacific (largest, 165M km²), Atlantic, Indian, Southern, Arctic. Highest point: Mt. Everest (8,848.86m). Deepest: Mariana Trench (10,994m).

## Core Explanation

Population: ~8.2 billion (2025). Largest countries by area: Russia (17.1M km²), Canada, China, USA, Brazil. Largest by population: India (1.45B, surpassed China 2023), China (1.42B). Most populous cities: Tokyo (37M), Delhi (33M), Shanghai (29M). Longest river: Nile (6,650km) or Amazon (6,400km — dispute over source). Largest desert: Antarctic Polar Desert (14M km² — cold deserts are deserts too).

## Further Reading

- [National Geographic Atlas of the World (11th Ed)](https://www.nationalgeographic.com/books/article/atlas-of-the-world-11th-edition)