Concept:The earth is round there is actually no 'up' and 'down' on the earth and it is just relative. Explanation:The earth can be divided into two hemispheres, the upper (northern hemisphere) and the lower (southern hemisphere).They are just names for specific places on the Earth so that it is easy for us to give directions and find our way around.These hemispheres are relative if not defined clearly. An equator is used to divide the earth into two hemispheres.If Earth was upside down and no one would really notice, because one would still feel that the ground is down and the sky is up.This is because gravity always pulls us towards the middle of the Earth.If someone is standing on the earth in India and someone is standing in Argentina they are on the same line through the interior of the earth.That's why they are relative upside down.??Thus, we, the people of India, actually stand upside down in relation to the people of Argentina.Confusion PointsLibya, Algeria, and Alaska (USA) all lie above the equator in the same hemisphere (i.e northern hemisphere) as that of India.Thus, there is no relative difference in location between these countries and India.