Turbidity currents are propelled by the water within them. Indicate whether the statement is true or false
ANS: F
Turbidity currents are actually propelled by gravity. The mass movement of sediments occurs when
turbulence mixes sediments into the water above a sloping bottom. The sediment then flows down the
slope, sometimes at great speeds due to the gravitational pull. Information can be found in the section
Continental Margins May Be Active or Passive.
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The more violent nature of weather produced by a cold front can be attributed to which two factors?
A) the gradual slope and slow forward motion of the front B) the steep slope and fast forward motion of the front C) the gradual slope and fast forward motion of the front D) the steep slope and slow forward motion of the front
The total change in concentration of carbon dioxide with depth is small because ________.
A. decay occurs at all depths B. carbon dioxide combines with water to form carbonic acid and bicarbonate C. photosynthesis occurs only at the surface D. carbon dioxide reacts with oxygen E. carbon dioxide is added directly from the atmosphere
The primary physical process responsible for the formation of Earth's layers, the inner and outer core, mantle, and crust is ____
A) density stratification B) radioactive decay C) outgassing D) mass layering
The study of landforms and their development is called _______________
Fill in the blank(s) with correct word