What is the approximate percentage of Earth’s surface that is covered by the hydrosphere?

The hydrosphere encompasses all the water found on, under, and above the surface of the Earth. This includes oceans, rivers, lakes, glaciers, and underground water. Approximately 71% of the Earth's surface is covered by the hydrosphere, which primarily consists of saline water in the oceans. The remaining percentage is made up of landmasses, including continents and islands, which account for about 29% of the Earth's surface.

The distribution of water is crucial for life and has a significant impact on the climate and weather patterns. For example, oceans play a vital role in regulating temperature and storing heat, while freshwater sources are essential for drinking water and agriculture. Understanding the extent of the hydrosphere's coverage helps emphasize the importance of water conservation and management in sustaining life on Earth.