The hydrosphere is the liquid water component of Earth, including oceans, seas, lakes, rivers, and streams, which collectively cover about 70% of the planet's surface. It is composed primarily of oceans containing 96.5% of Earth's water, while the remaining 3.5% is fresh water found in ice, groundwater, and other sources. The hydrosphere plays a crucial role in regulating climate and provides habitat while also being essential to living organisms and human needs.

1. The Earth’s
HYDROSPHERE

2. HYDROSPHERE
is the liquid water component of
the Earth. It includes the oceans,
seas, lakes, ponds, rivers and
streams. The hydrosphere covers
about 70% of the surface of the
Earth.

3. • Oceanographers – scientists
who study the ocean
• Salinity – term used to
describe the amount of
dissolved salts in ocean water.

4. THE STRUCTURE OF
HYDROSPHERE
• Oceans- 96.5% of water found here
• Fresh water-3.5% of water found here
• Fresh water distribution:
Ice: 1.762%
Groundwater: 1.7%
Surface Fresh Water: 0.014%
Atmosphere and soil: 0.002%

5. The Importance of Hydrosphere
• Water is a part of living cells
• Water provides a habitat
• Regulating climate
• Human needs

6. Ocean Floor

7. 5 MAJOR OCEANS OF THE WORLD
• Atlantic ocean
• Indian ocean
• Pacific ocean – largest , deepest
• Antarctic ocean
• Arctic ocean