Pz what is true about the focus?

it is the point where the most surface damage will occur.

it is the point where the surface waves originate and spread out.

it is the point where the waves are attracted.

it is the point of failure where the waves originate.

Which of the following are good safety measures during a thunder storm. a.) crouch with just the balls of your feet in contact with the ground. b.) rely on rubber-soled shoes to protect you. c.) stand under a tree. d.) go inside a closed building. e.) talk on a phone with a cord.