I really need help please I don’t know it.

What was the first civilization name of the indians?

Why did siddhartha gautama leave home at age 30? a. to find answers to his questions about human life b. to establish a religion that was better than hinduism c. to those who felt pain and suffering in life d. to spread his new religious ideas to other people

Which of the following is an effect that constantine's conversion to christianity had on the roman empire?