Study guide chapter 3 test 2009



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2015 oceans Study Guide with Answers
2015 oceans Study Guide with Answers

STUDY GUIDE OCEANS TEST 2015 Name _Answer Key__________________

  1. What are the two most abundant elements in ocean water?

Sodium and chlorine


  1. Where do benthos live?

On or in the ocean floor


  1. What resources can be harvested from the ocean?

Minerals, food, energy


  1. What is happening to the Pacific Ocean now?

It is getting smaller


  1. The measure of the amount of dissolved salts in a given amount of liquid is called

salinity


  1. The ocean’s surface temperatures vary with time of year and

latitude


  1. Most plankton are what?

Most are microscopic


  1. Describe nekton.

They swim actively in the open ocean.


  1. Marine organisms are grouped by

Where they live and how they move


  1. Tidal energy is generated from what?

The natural movement of tides.


  1. Wave energy is what type of resource?

A clean, renewable resource


  1. Why are drift nets a problem?

They can accidentally catch dolphins and turtles

  1. Engineers drill in the ocean floor for what resource? Oil and natural gas




  1. Why is nonpoint-source pollution difficult to trace?

Because it comes from different sources


  1. An oil spill from a tanker is an example of what type of pollution?

Point-source pollution


  1. Estuaries are important because they?

provide breeding grounds for migratory birds, filter out pollution from runoff before it reaches the ocean,

is a nutrient rich habitat for many species of aquatic and terrestrial animals


  1. List the oceans in order of size. Begin with the largest.

Pacific, Atlantic, Indian, Arctic


  1. If sunlight warms only the top 100 m of ocean water, why does the surface zone extend to about 300 m below the surface?

Surface currents mix the warmer water with the cooler water below.

  1. Where would the temperature of the ocean probably be lowest? What latitude, what season?

Near the poles in winter


  1. What underwater feature could become a volcanic island?

A frog eats a fly on land and then jumps into the water and is eaten by a water snake

  1. The most abundant dissolved salt in ocean water is

Sodium chloride


  1. The Earth’s oceans have changed over time.




  1. Crabs, seaweed, and clams are all considered to be ?

Benthic organisms


  1. What does a food web show?

The feeding relationships between organisms


  1. Which of the following animals lives mainly in the oceanic zone?

    1. zooplankton crab giant squid starfish




  1. Coral reefs are found in the _neritic __ zone.




  1. Farming and fishing are ways of harvesting the ocean’s __living___ resources.




  1. Name two kinds of renewable resource from the ocean

. wave energy. Tidal energy


  1. Desalination is the process of removing what from ocean water? salt

  2. Wave energy in the North Sea is strong enough to produce power for?


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