Geo 2

• Water


  constantly moving among Earth’s different spheres—the hydrosphere, the atmosphere, the geosphere, and the biosphere.
• Hydrologic Cycle


  unending circulation of water
• Earth


  The only planet in the solar system that has a global ocean and a hydrologic cycle.
• 1.36 billion cubic kilometers (326 million cubic miles).


  Estimated water content of the hydrosphere
• 96.5%


  Global Ocean
• 1%


  Saline Lakes and Ground Water
• 2.5%


  Freshwater
• Total Global Water

  Freshwater

  Saline Lakes and groundwater

  Oceans
• Freshwater

  • Surface water and other freshwater
  • Groundwater
  • Glaciers and Ice sheets
• 1.3%


  Surface water and other freshwater
• 30.1%


  Groundwater
• 68.6%


  Glaciers and Ice Sheets
• Surface water and other freshwater

  • Atmosphere
  • Biological water
  • Rivers
  • Swamps
  • Soil Moisture
  • Lakes
  • Snow and Ice
• 0.22%


  Atmosphere and Biological water
• 0.46%


  Rivers
• 2.53%


  Swamps
• 3.52%


  Soil Moisture
• 20.1%


  Lakes
• 73.1%


  Snow and Ice
• Ocean


  vast body of saltwater that covers a significant portion of Earth's surface
• Oceans


  Deeper then the sea
• Oceans


  Vast bodies of water that surround continents
• Sea


  generally smaller and partially enclosed by land
• Oceans


  tend to have a more consistent and higher salinity (salt content) compared to seas.
• Seas in the Philippines

  • South China Sea
  • Philippine Sea
  • Bohol Sea
  • Sibuyan Sea
  • Camotes Sea
  • Visayan Sea
  • Samar Sea
  • Celebes Sea
  • Sulu Sea
• Saline Lakes


  are bodies of water that have a high concentration of dissolved salts, typically much higher than freshwater lakes but lower than seawater.
• Saline


  refers to the presence of salt, usually in the form of sodium

  chloride (table salt), although other salts such as magnesium, calcium, and potassium salts can also contribute to salinity.
• Dead Sea


  Also known as the “salt sea”
• Dead Sea


  technically not a sea at all, but a landlocked salt lake between Jordan and Israel.
• Dead Sea


  Its waters are mainly drawn from the Jordan River, and the high salinity means no life can survive here
• Glaciers


  large, persistent body of ice that forms over many years as snow accumulates and compresses into dense ice.
• Glaciers


  found in polar regions, high mountain ranges, and some subpolar regions around the world.
• Glaciers


  play a significant role in shaping landscapes, contributing to the Earth's hydrological cycle, and influencing global climate patterns.
• Ice Sheets


  massive expanses of ice that cover large areas of land, primarily in polar regions.
• Ice Sheets


  distinct from glaciers in that they are not confined to valleys or mountains but instead spread out over extensive flat or gently sloping terrain.
• Groundwater


  refers to water that is located beneath the Earth's surface in soil pore spaces, fractures, rock layers, or other geological formations.
• Groundwater


  a crucial component of the Earth's hydrological cycle, interacting with surface water bodies such as rivers, lakes, and wetlands, as well as with the atmosphere through processes like evaporation and precipitation.
• Atmosphere


  Water in the atmosphere plays a crucial role in Earth's

  climate system and weather processes.
• Rivers


  is a natural flowing watercourse that moves water from higher elevations to lower elevations, typically draining into a larger body of water such as an ocean, sea, lake, or another river.
• Nile River


  longest river in the world located in North East Africa