Write a statement relating the environmental lapse rate to stability
What will be an ideal response?
When the environmental lapse rate is greater than 10°C, a rising parcel cooling at the adiabatic lapse rate will remain warmer than the surrounding environment and will consequently be unstable.
When the environmental lapse rate is less than 5°C, a rising parcel will be colder than the surrounding environment, whether it is saturated or not. A parcel that is colder than the surrounding air will not rise, and will therefore be absolutely stable.
When the environmental lapse rate is between the value of the dry adiabatic lapse rate and the wet adiabatic lapse rate, the parcel will be stable (colder than the environment) when it is not saturated but will become unstable (warmer than the environment) once condensation begins to occur inside the parcel. Therefore, the parcel will be conditionally unstable.
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A) downward, upward B) downward, downward C) upward, downward D) upward, upward
A cost-benefit analysis of the acid rain prevention programs shows that
A) there was no net economic benefit. B) there was a large benefit and savings compared to costs. C) there was a large loss because costs far outweighed benefits. D) with vastly increased spending, the program could show a net benefit.
In the cumulus stage of an ordinary single-cell thunderstorm
A) warm air near the ground rises at the moist adiabatic lapse rate. B) moist air rushes upward, forming the updraft. C) entrainment is not yet occurring. D) hail formation is most prevalent. E) thunder and lightning are common.
We study the mantle ________. Choose the phrase that does not apply.
A. using seismic waves B. using rocks that have been naturally brought to the surface C. by drilling directly into it D. using geophysics E. using numeric models