The document discusses the distribution and movement of water on Earth. 97% of Earth's water is found in oceans, where salinity varies by location. Ocean currents are influenced by winds and temperature differences. Glaciers and icebergs contain 2% of water and include valley, continental, and ice shelf glaciers. Groundwater and soil moisture make up 0.7% of water, and surface freshwater like lakes and rivers contain 0.01%. Water is essential for life but can become polluted from various sources. Atmospheric moisture in the form of humidity, clouds, fog, and precipitation amounts to only 0.001% of Earth's water.

1. WATER ON EARTH The Hydrosphere

7. Continental Glacier Ice Shelf Calving