________ are mixtures of clay, sand, and bitumen
A) Tar pits
B) Oil sands
C) Oil shales
D) Gas hydrates
Answer: B
Environmental & Atmospheric Sciences
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The history of world agriculture is characterized by long periods of no change interrupted with short periods of major change
Indicate whether this statement is true or false
Environmental & Atmospheric Sciences
Floods are described by ________, the average time between floods of a given size.
A. recurrence interval B. discharge C. forecasting D. lunar month E. calendar year
Environmental & Atmospheric Sciences
If a wave is a capillary wave, the force that causes the water to return to its undisturbed level is ________.
A. wind B. gravity C. seismic forces D. surface tension E. All of these are correct.
Environmental & Atmospheric Sciences
What are these sharp, glacially carved ridges?
A. arête B. razorback C. hogback D. flatiron E. cirque
Environmental & Atmospheric Sciences