An avalanche is a type of which one of the following disasters?

Which one among the following is not an atmospheric natural disaster?

Which one of the following earthquakes is very severe and disastrous ?

Which one of the following regions of the U.S.A. is known as “Tornado Alley”?

Which of the following cyclones did not affect India?

Which one of the following is the other term used for ‘Focus’ in relation with an earthquake?