How are tsunamis generated?
-through creation of the seafloor under water
-through creation of the seafloor above water
-through displacement of the seafloor above water
-through displacement of the seafloor under water
answer
-through displacement of the seafloor under water
question
What is a tsunami?
-a series of water waves that travel away from a fault in all directions at low speed
-a series of water waves that travel toward a fault in all directions at high speed
-a series of water waves that travel away from a fault in all directions at high speed
-a series of water waves that travel toward a fault in all directions at low speed
answer
-a series of water waves that travel away from a fault in all directions at high speed
question
Why do ships at sea tend not to notice tsunamis?
-Tsunamis in deep water have small wave height and long wavelength.
-Tsunamis in deep water have small wave height and short wavelength.
-Tsunamis in deep water have large wave height and long wavelength.
-Tsunamis in deep water have large wave height and short wavelength.
answer
-Tsunamis in deep water have small wave height and long wavelength.
question
Why does the wave height of a tsunami increase as the tsunami enters shallow water?
-In shallow water, the wind driving the tsunami must push a larger water column.
-In shallow water, the energy of the tsunami must be contained within a larger water column.
-In shallow water, the energy of the tsunami must be contained within a smaller water column.
-In shallow water, the wind driving the tsunami must push a smaller water column.
answer
-In shallow water, the energy of the tsunami must be contained within a smaller water column.
question
What type of plate boundary are most tsunamis associated with?
-convergent plate boundaries
-divergent plate boundaries
-transform plate boundaries
answer
Convergent plate boundaries
question
Which ocean is associated with most tsunamis?
-Arctic Ocean
-Atlantic Ocean
-Pacific Ocean
-Indian Ocean
answer
Pacific Ocean
question
Will Sumatra experience another tsunami like the destructive one of December 2004?
-This is unlikely, because Sumatra is in the Pacific Ocean.
-This is likely, because Sumatra is in the Pacific Ocean.
-This is likely, because Sumatra is near many ocean trenches.
-This is unlikely, because Sumatra is near many ocean trenches.
answer
This is likely, because Sumatra is near many ocean trenches.
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