Hydrosphere Flashcards
The _ is the liquid water component of the earth.
Hydrosphere
The hydrosphere covers about _% of the surface of the Earth.
75%
An _ is great body of salt water on the surface of the Earth.
Ocean
Is the scientific study of the physical, chemical and biological aspects of the oceans.
Oceanography
Four major subdivisions of the world oceans are the
Atlantic Ocean,Artic ocean, Pacific ocean, and Indian ocean.
Are extensive mountain chains with inner troughs heavily intersected by cracks.
Mid-ocean ridges
Mid-ocean ridges are extensive mountain chains with inner troughs heavily intersected by cracks called _.
Fracture zones
People who study the structure and topography of the ocean floor using a variety of techniques.
Oceanographers
Are the periodic rise and fall of large bodies of water.
Tides
Winds and currents move the surface water causing _.
Waves
Types of Tides
Spring tides, Neap tides, Proxigean spring tide, And Ebb tides
When the moon is full or new, the gravitational pull of the Moon and Sun are combined. At these times, the high tides are very high and the low tides are very low. This is known as _.
Spring high tide
They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another. They are especially weak tides.
Neap tides
Is a rare, unusually high tide.
Proxigean Spring tide
All called falling tide is the period between high tide and low tide during which water flows away from the shore.
Ebb tide
