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Study guide chapter 3 test 2009
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Page | 1/4 | Date | 04.03.2021 | Size | 43 Kb. | | #55989 |
| 2015 oceans Study Guide with Answers 2015 oceans Study Guide with Answers
STUDY GUIDE OCEANS TEST 2015 Name _Answer Key__________________
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What are the two most abundant elements in ocean water?
Sodium and chlorine
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Where do benthos live?
On or in the ocean floor
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What resources can be harvested from the ocean?
Minerals, food, energy
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What is happening to the Pacific Ocean now?
It is getting smaller
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The measure of the amount of dissolved salts in a given amount of liquid is called
salinity
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The ocean’s surface temperatures vary with time of year and
latitude
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Most plankton are what?
Most are microscopic
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Describe nekton.
They swim actively in the open ocean.
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Marine organisms are grouped by
Where they live and how they move
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Tidal energy is generated from what?
The natural movement of tides.
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Wave energy is what type of resource?
A clean, renewable resource
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Why are drift nets a problem?
They can accidentally catch dolphins and turtles
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Engineers drill in the ocean floor for what resource? Oil and natural gas
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Why is nonpoint-source pollution difficult to trace?
Because it comes from different sources
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An oil spill from a tanker is an example of what type of pollution?
Point-source pollution
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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
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List the oceans in order of size. Begin with the largest.
Pacific, Atlantic, Indian, Arctic
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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.
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Where would the temperature of the ocean probably be lowest? What latitude, what season?
Near the poles in winter
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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
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The most abundant dissolved salt in ocean water is
Sodium chloride
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The Earth’s oceans have changed over time.
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Crabs, seaweed, and clams are all considered to be ?
Benthic organisms
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What does a food web show?
The feeding relationships between organisms
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Which of the following animals lives mainly in the oceanic zone?
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zooplankton crab giant squid starfish
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Coral reefs are found in the _neritic __ zone.
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Farming and fishing are ways of harvesting the ocean’s __living___ resources.
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Name two kinds of renewable resource from the ocean
. wave energy. Tidal energy
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Desalination is the process of removing what from ocean water? salt
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Wave energy in the North Sea is strong enough to produce power for?
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