What percentage of Earth's surface is covered by water?

The percentage of Earth's surface covered by water is widely recognized as approximately 71%. This statistic reflects the vast expanses of ocean, seas, rivers, and lakes that constitute a significant portion of the planet's total area. The oceans alone account for about 96.5% of all Earth's water, making them a crucial component of this figure. Understanding this percentage is essential in environmental science, as water bodies play a key role in climate regulation, ecosystems, and human activities.

The other percentages listed do not accurately represent the proportion of Earth's surface covered by water. While 61%, 81%, and 91% might suggest various scenarios, they do not align with the scientifically accepted data regarding the water coverage on the planet. Recognizing the correct figure aids in grasping the importance of water in environmental contexts and its management in water resources.