Rivers

Rivers are flowing bodies of freshwater that drain land surfaces and carry water from higher elevations to seas, lakes, or other rivers. They have been central to human civilisation - the Nile, Tigris, Euphrates, Indus, and Yellow River all cradled ancient societies. Rivers provide drinking water, irrigation for agriculture, transportation routes, and hydroelectric power. They also shape landscapes through erosion and deposition, forming valleys, canyons, and deltas. The Amazon carries more water than any other river, while the Nile is traditionally considered the longest. This sub-category tests knowledge of the world's major rivers - their lengths, source regions, countries they flow through, and their historical and economic significance.

This topic is part of Geography - use the map and continents tools below, then practice with flashcards and quizzes.