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Animals
Plate Tectonics
Sea Floor
Global Positioning
100
What is a group of female seals called?
Harem
100
An ancient landform that consisted of all the present – day landforms
Pangaea
100
What seafloor feature is characterized as a very deep depression in the ocean floor?
Trench
100
The earth is tilted at angle. How many degrees is that angle?
23.5
200
What is the term used to describe the buildup of toxic molecules such as mercury in fish flesh?
Bio-Accumulation
200
New oceanic crust is created at what type of boundary
Divergent
200
What seafloor feature is characterized as an underwater plateau?
Guyot
200
The Prime Meridian is equal to how many degrees longitude
0
300
If Sea otters were removed from the ecosystem, which of the following would occur?
The sea urchin population would grow out of control.
300
Old oceanic lithosphere is destroyed at what type of boundary?
Convergent
300
What are the three parts of the continental margin?
Continental Shelf, Continental Slope, Continental Rise
300
Earth rotates through _____ degrees of _____ each hour.
15, Longitude
400
Describe what happens when a starfish undergoes fission (a type of asexual reproduction)?
The starfish is cut in half at the middle then the missing half starts to fill in.
400
Describe the movement of the convection currents at a divergent boundary?
The convection currents move in circles in opposite directions.
400
How did scientists discover that the ocean floor wasn't flat?
Sonar waves bounced back at different intervals.
400
Using a topographic map how can we tell if there is a depression in the landscape?
The contour lines with the hash marks indicate a depression.
500
Describe how echolocation works?
Echolocation uses sound waves that hit the target and the sound waves bounce back to the dolphin.
500
Explain why oceanic crust is subducted by continental crust?
Oceanic crust is more dense than continental crust so the less dense continental crust just slides over the oceanic crust.
500
What are at least two conditions that make deep sea exploration difficult for humans to pilot?
Water pressure, Low Oxygen, Low Light
500
If the contour lines on a topographic map are very close together, what does that tell us about the landscape?
The landscape is very steep.