what were the two major uses of hieroglyphics? how did it affect egyptian culture?

Answer 1

http://en.wikipedia.org/wiki/Hieroglyphics

Read carefully, especially the first two paragraphs.

Answer 2

Please read the questions again,and review the words that you read in the History book,or you can search on to look for the uses and more of this Egyptian cultures.The only way you could know better,is to read the text clearly and understand it,ask,and search.