Mexico city is threatened by which of the following natural disasters? monsoons earthquakes volcanoes tornadoes

The biggest threat for Mexico City is earthquakes - they are often caused by the nearby volcanoes, but the volcanoes are too far to truly threaten the city.

Monsoons are typical for other regions, such as India and Tornadoes are found more to the north, in the United States.

Ithink the answer to that would be b):

Answer (d) may increase or decrease porosity through dissolution or deposition;