Oceans
How many oceans are there?
5
What is salinity?
The saltiness of the water.
What is the origin of a river called?
The source.
What is the watercycle?
Precipitation, evaporation, condensation,
what is a cave?
underground hollow space, or in a hillside
What is the smallest ocean?
Artic
Finish the sentence: When salinity increases, freezing point is
decreasing
What is a tributary?
a stream feeding a larger stream or a lake
Where is the zone of aeration?
Above the water table
what is a sea cave
Opening made by erosion by the sea
What are the tectonic features on the ocean floor?
Ridges, seamount, trench, island arc
Name the 4 zones in the ocean
photic, aphotic, abyssal, hadal
What is a meander?
What is permeability?
Ability to let water go through
How sinkholes were formed?
Probably a solution cave ceiling collapsed
What is the continental self?
the edge of a continent that lies under the ocean
How pressure changes in the sea by every 10 m?
It will increase at about 1 atm.
What are floodplains?
the low-lying ground next to a river subject to flooding
What is an aquifer?
underground water stored in rocks, or among sediments
What is a speleothem
a structure formed in a cave by deposition
What is an atoll?
a ring-shaped coral reef, island, or series of islets
What are the main components of seawater?
chloride, sodium, sulfate, magnesium
Explain eutrophication.
Too much nutrition in the lake, reducing oxygen level
What is capillary action?
when liquid flows through narrow spaces against gravity, by adhesive forces in the liquid
How solution caves are formed?
when acidic water seeps into small cracks—dissolving the rock it touches