This hemisphere contains most of the worlds and 90% of the worlds population

The Northern Hemisphere contains most of the population of the world. It is home to more than 6.5 billion people. Countries that are with the biggest populations here would include China, India, USA, Russia. It is not surprising that the hemisphere with the biggest population is the same that has Europe and Asia in it.

it made them more prductive and efficent but with the change of polcies less and les got into the navy