ES L6+7

What are the two major types of currents found in the ocean?

• surface and density (deep)

   

• electrical and density (deep)

   

• salinity and density (deep)

   

• surface and salinity

Where might a richer ecosystem with more biomass, biodiversity, and better fishing be located?

• Near the Western shores of a continent that experiences upwelling

• Near the Subtropical zones in locations of higher salinity

   

• Near the Eastern shores of a continent that experiences downwelling

• Near the Poles in cold water

Which of the following factors would contribute to a BIGGER wave?

• the distance the wind blows is short

   

• the wind is slow and weak

   

• the wind blows for a short period of time

•  

  the distance the wind blows is long

  
  

Which water mass would be the most dense?

• warmest, least salinity

   

• coldest, least salinity

   

• warmest, highest salinity

•  

  coldest, highest salinity

  
  

Approximately how many high tides happen each day?

• 4

•  

  3

   

• 1

• 2

Which of the following is a way that salt is removed from the ocean?

•  

  salt from the soil is dissolved in water

   

• water evaporates out of the ocean

   

• sediment is carried into the ocean via rivers

•  

  sea creatures use the salt ions to build their shells

  
  

Which of the following affects surface currents the LEAST?

•  

  Earth's rotation

  
  

•  

  salinity

  
  

• major overall wind patterns

   

• shape of ocean basins

 What major process was a source of water for Earth’s oceans?

• glaciers

• volcanic outgassing

   

  
  

• comets and meteors

   

• just meteors

What is the difference between a brinicle and an evaporite?

• A brinicle is a very dense and warm icicle of water in the arctic, and an evaporite is the salt formation that evaporates into the air.

•  

  A brinicle is a very dense and warm icicle of water in the arctic, and an evaporite is the salt formation left after water changes to the gas phase.

  
  

•  

  A brinicle is made of very cold and salty water, an evaporite is the salt formation left after water changes to the gas phase.

  
  

•  

  A brinicle is made of very cold and salty water, an evaporite is the salt formation that evaporates into the air.

  
  

What is the most common substance that is dissolved in ocean water?

•  

  magnesium

  
  

• chlorine

   

• argon

   

• calcium