MKTG-231, marketing assignment help

i need short answers for these questions

1- What is the American Marketing Association’s (AMA) definition of marketing and what does it entails?

2- Discuss how environmental factors affect marketing activities.

3- What is a segmentation base (or segmentation variable? Name the common segmentation bases used by marketers to segment consumer markets.

4- The marketing mix refers to a blend of marketing variables known as the four P’s. Name and briefly describe each of the 4p’s.