Amalicious program that can replicate and spread from computer to computer?

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

People with high self-esteem: accept their strengths and weaknesses. believe that failed experiences are failures of their whole self. feel good about who they are only when they reach total success. need positive external experiences to counteract negative feelings that constantly plague them.

How can a user delete a drawing object