Sinking air _________ cools adiabatically
a. sometimes
b. never
c. always
b
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Why is the solution to pollution not always dilution?
A) Liquid pollutants cannot be dissolved in water. B) Some pollutants cannot be dissolved in any solvent. C) Some pollutants are toxic at such low concentrations that they cannot be practically diluted. D) Water itself is a pollutant.
When groundwater flows into a lake, it is called:
a. groundwater recharge b. groundwater discharge c. base flow d. none of the above
Compare and contrast the various types of telescopes, including radio telescopes
What are the advantages and disadvantages of each one? Are there other considerations when choosing one telescope over another besides optical clarity or magnification?
Once oil and gas are formed, they
A. flow most easily through permeable rocks, such as sandstone. B. rise toward the surface. C. are lighter than water. D. can be prevented from reaching the surface if they are trapped by impermeable layers. E. All of these choices are correct.