While there is no practical limit on what types of people can form a friendship, friends tend to share common backgrounds, occupations, or interests and have similar demographics.
Approximately 800,000,000 humans live in the Southern Hemisphere, representing only 10â12% of the total global human population of 7.3 billion. This is due to the fact that there is significantly less land in the Southern Hemisphere than in the Northern Hemisphere.
Specialization of the Two Hemispheres There are two hemispheres in your brain, the right and the left. At first glance, these hemispheres appear to be mirror images of one a â¦ nother, but closer examination reveals that they are highly specialized regions that serve differing functions. hemisphere is one-half of a sphere, where the sphere may be  divided by any plane that includes the center of the sphere.    In practice, there are various uses for â¦ the term.    Geography   Half of the terrestrial globe, or a projection of the Earth's  surface in a map or picture.