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.

Environmental & Atmospheric Sciences

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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

Environmental & Atmospheric Sciences

The primary physical process responsible for the formation of Earth's layers, the inner and outer core, mantle, and crust is ____

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Environmental & Atmospheric Sciences

The study of landforms and their development is called _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences