solved Help me study for my Writing class. I’m stuck and

Help me study for my Writing class. I’m stuck and don’t understand.

Disc 1 
In chapter 8 we focus on cluster analysis.  Therefore, after reading the chapter answer the following questions:

What are the characteristics of data?
Compare the difference in each of the following clustering types: prototype-based, density-based, graph-based.
What is a scalable clustering algorithm?
How do you choose the right algorithm?
Disc 2: This week we focus on globalization concepts.  Please explain the concept of globalization and the role information technology has in the global market.