some more theology homework

First one is :
Read Ezra 9:1–4. Discuss why these verses in Ezra interpret intermarriage between races as “faithlessness” (v. 2). Cite at least 5 places in the Old Testament to support your position. Then, explain whether the application of the practice of forbidding intermarriage between races would or should be considered racist today.
 
For this forum, you are required to create a thread in response to the provided prompt. Your thread must be 400 words, with at least 3 citations.
 
Second one is:
Topic: The Writing of Mark

List and discuss at least 5 possible reasons for the writing of Mark’s Gospel. Explain why you agree or disagree with each reason as well as which reason you believe to be most likely and why.
 
This forum is must be at least 500 words