The regions are no longer used but if you mean countries within the UK, they are: England, Scotland, Wales and Northern Ireland.
There are more than three regions in the UK
Germany consists of sixteen states.
For DVD's, it's region 2.
Yes you can.
Mainly in the north west regions.
Because Asia consists of many tropical regions.
Because the UK consists of 4 main Countries. One Capital City for each Country.
Nissl bodies
The UK, and most governments which are based on the UK government. The executive branch consists of Departments which come under control of Parliament.
They were interested in the regions valuable fur trade.
A longitudinal wave such as a sound wave.