Goals of email marketing and collecting emails.

Please answer the following questions.
1.Explain goals of email marketing.
2.Discuss techniques of collecting emails. 

Introduction to data science- What do you mean by data?

Hope you have seen the video on YouTube.
I request you to answer following questions.
1.What do you mean by data?
2.Define raw data, field data, and experiment data.
3.Discuss technique of primary data collection.
4.Describe sources of secondary data. 

Agile supply chain- Covid19 corona market daya

Hope you have seen my  video on  YouTube.
I request you to answer following questions.
1.What do you mean by agility?
2.list fundamentals of agility.
3.Explain constituents of agile supply chain.
4.Discuss the need of agile supply chain in the covid19 corona virus days.