Besides being nonconventional fossil fuels, what do oil sands and oil shales have in common?
A. Mining and processing of them is relatively clean and environmentally friendly.
B. They are formed from the burial of carbon-rich materials in swamps, just like coal.
C. The United States has vast resources of both.
D. The desired resource in them is solid, so it must be processed to obtain a liquid fuel.
Answer: D
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On the windward side of the mountain, is the relative humidity of the parcel increasing or decreasing as it rises from sea level to 2000 meters? Why?
Assume that a parcel of air is forced to rise up and over a 4000-meter-high mountain (as shown). The initial temperature of the parcel at sea level is 30°C, and the lifting condensation level (LCL) of the parcel is 2000 meters. The DAR is 10°C/1000 m and the SAR is 6°C/1000 m. Assume that condensation begins at 100% relative humidity and that no evaporation takes place as the parcel descends.
What will be an ideal response?
When a certain clear red-brown liquid is distilled we recover a clear liquid and a red-brown solid? What can be said about the red-brown liquid?
A) It is an element. B) It is a compound. C) It is a solution. D) We cannot determine if it is an element, a compound or a solution.
El Nino
A. is a phenomenon associated with colder surface water in the eastern Pacific. B. is a phenomenon associated with warmer surface water in the eastern Pacific. C. is a relatively recent phenomenon that is attributed to global warming. D. is a relatively recent phenomenon that is attributed to global cooling.
Electrons flowing in an electric circuit move by
A. colliding with molecules. B. interacting with an established electric field. C. bumping other electrons. D. none of the above