South America is mostly in the southwestern hemisphere.
Antarctica is the continent that is neither in the western nor northern hemispheres. It is located mostly in the southern hemisphere.
The continent that is (mostly) in the southern hemisphere and is also in the western hemisphere (hence, in the south-western quadrant) is South America.
Antarctica is the only continent that is entirely in the western hemisphere and not in the northern hemisphere. Australia is mostly located in the southern hemisphere but extends into the eastern hemisphere as well.
If we take the Eastern Hemisphere to be the part of the earth between longitude 0 and the 180th meridian, travelling East, then South America is the only continent to be exclusively in the Western Hemisphere. If we take the International Date Line as the boundary, then both North and South America are entirely in the Western Hemisphere.
South America is in the Western Hemisphere, mostly in the Southern Hemisphere, with a very small part in the Northern Hemisphere.
Yes. Western Sahara is technically in the Western hemisphere. However, it sits rather close to the Prime Meridian and is part of the African Continent which is mostly in the Eastern Hemisphere.
Africa is predominantly located in the eastern hemisphere. The continent is situated on both the equator and the prime meridian, with the majority of its landmass lying east of the Greenwich Meridian.
North and South America are the only continents fully (and mostly) in the Western Hemisphere.
Asia is mostly located in the Northern Hemisphere.
Australia.
The North Western Hemisphere.