Southern hemisphere
The Spanish term 'hemisferio sur' translates to 'southern hemisphere' in English. The term is used in geography to refer to the half of earth that is located to the south of the equator. It includes all the parts of South America, Australasia, half of Africa, Antarctic and parts of the Indian and Pacific Oceans.
We live in the southern hemisphere, so our seasons are opposite to those of the north.
This is a factual statement explaining how seasons in the southern hemisphere are opposite to those in the northern hemisphere due to the Earth's tilt.
In the southern hemisphere, the Orion constellation appears inverted.
This describes how celestial bodies appear differently in the southern hemisphere due to the perspective from the Earth's surface.
Most of the southern hemisphere population lives in urban areas.
This statement is providing a demographic detail about the southern hemisphere, specifically about the environment in which most residents live.