One of the units for large data volume which is equal to 1 000 MB or 1 000 000 000 bytes, is called a gigabyte, and with this equivalent, a gigabyte is used in engineering, computing, business, and some other fields.
In it final form, the Likert Scale is a five (or seven) point scale which is used to allow the individual to express how much they agree or disagree with a particular statement. I believe that ecological questions are the most important issues facing human beings today.
Someone would consider it as ordinal, while someone else would consider it as interval. The Wikipedia article Likert scale gives an overview of the discussion. No one consider it as nominal but not ordinal. The ordering of the items is clear.