When do i use por and para in a sentence and what's a easy way to remember it?

Respond to the following question in spanish. 959-03-02-04-00_files/i028000. ¿qué hora es? taco

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."

Starile sufletesti sunt ca cele morale? va rog un raspuns concret.