What is the largest known reservoir of hydrocarbons on Earth?
a. Oil
b. Methane hydrate
c. Coal
d. Natural gas
ANS: B
Methane hydrate is methane-laced crystals. This is common in the sediments of the continental slope
at approximately 200 to 500 meters below the seafloor. They are stable and long-lived. Information
can be found in the section Physical Resources.
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________ are massive deposits of limestone.
A. Lithosomes B. Reefs C. Alluvial fans D. Deltas E. Turbidity flows
Infrared imagery, like visible imagery, can only detect the presence of clouds during the day
Indicate whether the statement is true or false
Oceanic crust is predominantly composed of the igneous rock called ________
A) basalt B) granite C) anorthosite D) peridotite E) tonalite
Conservation biologists refer to the number of individuals needed for long-term survival as
A. the bottleneck. B. K selected. C. the minimum viable population size. D. the carrying capacity.