Location, constituent countries, forms of government, climate, hemisphere, languages, ethnic population.
North America and South America make up the western hemisphere.
There are three continents larger than South America. They are North America, Africa, and Asia. That makes South America the fourth largest continent.
What? This question makes no sense. There plenty of mountains in America. South and North America.
In America, there is a wide variety of natural resources. In the north, there are great lakes boasting fresh water, in the east there is plenty of forest land, and in the south the warm weather makes the land agriculturally viable. The north, south, and west have different resources depending on which country is being spoken of. In America, the south produces much of the agriculture consumed, the north has plenty of fresh water lakes, and the east has great forest land.
North america is pointed away from the sun so that makes it winter in the south because its the farthest away from the heat
Neither - Barbados is an island in the Caribbean Sea.
The Equator!
The main thing that makes the opossum different from other marsupials is that they are the only marsupial native to North America.
South America
All of them: North and South America, Australia, Asia, Europe, Africa, and Antartica. When you are at the North Pole, the only direction you can go is south. So this makes every continent south of the North Pole.
It's one of these: Africa, Antarctica, Asia, Europe, North America, South America or Australia.
The only continents entirely north of the equator are Europe and North America (depends though if you consider the americas as one or two continents). South east asia (countries like Indonesia and New Guinea) is south of the equator, the rest is north of it. That makes Asia a continent which is on both hemispheres. Likewise this applies to Africa, where the bigger part of the continent is north of the equator; and as well to south america, where countries like Venezuela and Guyana are north and the big rest south of the equator. Australia is south of the equator, although there are a few islands north of the equator, that are considered to belong to the continent of Australia.