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Sailing stones: Quiz


Question 1: They also found that ________ (the region just above ground where winds are slower due to ground drag) on these surfaces can be as low as 2 inches (5 cm).
Navier–Stokes equationsBoundary layerFluid mechanicsDrag (physics)

Question 2: Professor John Reid led six research students from ________ and the University of Massachusetts in a follow-up study in 1995.
Amherst CollegeHampshire CollegeReed CollegeOhio Wesleyan University

Question 3: They have been recorded and studied in a number of places around Racetrack Playa, ________, where the number and length of travel grooves are notable.
Death ValleyInyo County, CaliforniaSierra Nevada (U.S.)Lake Tahoe

Question 4: Naturalists from the ________ later wrote more detailed descriptions and Life magazine featured a set of photographs from The Racetrack.
Yellowstone National ParkAppalachian TrailNational Park Passport StampsNational Park Service

Question 5: They maintain that ________ sheets around the stones either help to catch the wind or move in ice floes.
Precipitation (meteorology)SnowWaterIce

Question 6: Most hypotheses favored by interested geologists posit that strong ________ when the mud is wet are at least in part responsible.
ThunderstormPrecipitation (meteorology)MeteorologyWind


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