1. Which of the following is NOT a considered a deep sea floor structure? Seamou
ID: 111879 • Letter: 1
Question
1. Which of the following is NOT a considered a deep sea floor structure?
Seamount, Rift Valley, Mid-ocean ridge, or submarine canyon?
2. The seafloor structure can go on to form volcanic islands.
Hydro thermal vents, Seamounts, Guyot, or Mid-ocean ridge?
3. The neraly flat region of the sea floor that slopes very gently toward the ocean basin from the continent is the? continental margin, slope, shelf, or break?
4. Black smokers or chimney shaped vents on the bottom of the ocean are know to occur at?
Continental margains where continental crust and ocean meet, in deep ocean trenches, scattered across the coean basin, or in hydrothermal vents associated with rift valleys of mid-ocean ridges?
5. Life in thermal vents has a surprising way of survive, with no light they rely on this process....
fusion, telekinesis, photosynthesis, or chemosynthesis?
6. what does sonar use to allow use to see the structure of the seaflorr?
Energy waves, Sound waves, Radio waves, or Light rays?
7. When two ocean plates diverge (pull apart) which of the following is formed?
Continental shelf, Mid-ocean ridge, Trench, or Submarine canyon?
8. A continent has gradual inclince to the sea with no trenches. What kind of continenetal margin would this be?
Passive, Subduction, Active, or Slip-strike
9. Who came up with the idea for continental drift, that eventually lead to plate tectonics?
Ralph Waldo Emerson, James Hutton, Carl Spitzweg, or Alfred Wegener
Explanation / Answer
1. "Rift valleys" are not part of deep sea floor structure.
2. "Seamounts" are failed volcanic mountains which rise from the seafloor and those which reach above sea level are called volcanic islands.
3."Shelf" is a nearly flat region in the sea that slopes very gently towards ocean basin from the continent.
4. "Black smokers" occur at hydrothermal vents associated with rift valleys (mid oceanic ridges).
5."Chemosynthesis" is the convertion of organic compound and different molecules by various bacteria and living organisms during absence of light.
6. "Sonar" is a sound propagation used to know the deep and submarine topography in the sea.
7. "Mid oceanic ridge" is formed when two ocean plates diverge.
8. "Passive continental margin" which comprises feature like continental rise with no trenches found in these region and the continental slope merge gradually inclining towards the sea.
9."Alfred wegener" developed the continental drift theory related to plate tectonics.
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