The speed of light through space is?

 In a vacuum, the speed of light is 186,282 miles per second (299,792 kilometers per second), and nothing can pass faster than light, in principle. The speed of light is, well, a lot of miles per hour: around 670,616,629 mph.

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i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

earthquakes in florida are rare because the state is not located near any tectonic plates. in fact, florida is tied for first place as having the fewest earthquakes of any state. much of florida is limestone and seafloor materials that is not conducive to earthquakes.

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