Dutch elm disease spread more rapidly in the United States than in Europe because of the 1. practice of planting elms in monoculture 2. plentiful breeding sites for beetle vectors due to elm phloem necrosis 3. narrow genetic base of susceptible American elm trees 4. none of the others 5. all of the others

the bedroo..

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.

explanation:

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if you add everything up correctly you should get 69 i got this because 50 plus 19 is it