What is agreed upon by scientist as the most likely cause of the final extinction for the dinosaurs?

Distance that the transcontinental railroad covered from omaha to san francisco.

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.

Select an environmental issue faced by the countries of this region ( central america, south america, and the caribbean) . write a 150-word essay describing the problems presented by each issue and possible solutions to these problems.