Mexico City is the location that has the highest population density. It is one of the most crowded cities in the world, so it is only natural that this is the correct answer here as well.
Muhammad had retired to spread the word of god. Him doing this creats a war. He retired to fight for his believe.
Not really sure about this one but I believe the answer is true
The seismic activity occurs on the fault lines where tectonic plates converge or diverge from each other. #Prankerandrew92