Order of the records in a table

This is a general question,

1.) How is the order of the records in a table with no indexes?

2.) How is the order of records in a table with only one clustered index?

3.) How is the order of records in a table with only one non-clustered index?

4.) How is the order of records in a table with only one clustered index and multiple non-clustered index?

Thanks in advance for the help.

svk