If this is a true or false question, the answer is false. United States do share land borders with Mexico as well as Canada along with Russia, Bahamas and Cuba. United States then is north of Canada and south of Mexico. Hope this is the answer.
Answer: El Salvador
Explanation: El Salvador has a population density of 303 people per square kilometer (785 per square mile).
The earth tilts for different times of the year. During the summer Alaska is a lot closer to the sun than florida.
Answer:
Tectonic plates
Explanation:
In general, earthquakes are due to the immense vibrations from the shifting of tectonic plates. In the specific case of the San Andreas Fault, there is one issue. It is directly on top of a boundary between two tectonic plates. So, when either one of the plates shifts, extreme earthquakes occur due to the location being on top of the source.