The Earth is often referred to as the blue planet because, when seen from outer space, it appears mostly blue due to the vast expanse of water covering its surface.
The emblem of the Indian Navy contains the motto Sam noh Varunah ("Be auspicious to us, O Varuna"), which is an invocation to Varuα a, a Vedic deity associated with the oceans, sky, and water.
Oceans and continents are not distributed equally between the Northern and Southern Hemispheres.
Although conventionally divided into five distinct oceans, all oceans on Earth are interconnected, allowing seawater and marine life to flow constantly across boundaries.
Oceans play a dual role in sustaining life and generating destructive natural events.
Continents can be counted in multiple ways depending on whether certain landmasses are considered single or separate entities.
An island is a piece of land completely surrounded by water on all sides, which is smaller than a continent.
Antarctica is an extremely cold, ice-covered continent at the South Pole.