10 countries in North America and 13 nations and territorialisland in the CaribbeanSea. 3 largest continental nations in North America:
-USA
-Canada
-Mexico
4 countries in the south of Mexico:
-Belize
-Honduras
-El Salvador
-Nicaragua
-Costa Rica
-Panama
These are referred to Central America.
Panamacanal was constructed and open in 1914 and allowed ships to pass from CaribbeanSea on the Atlantic Ocean side of the continent and cross the narrowisthmus into PacificOcean.
Panama is the end point of North America and South America begins.
The island nations in the CaribbeanSea include:
-Cuba
-Haiti
-Dominican Republic
-Jamaica
Smaller island nations are in the CaribbeanSea, also the territories of other countries:
-Puerto Rico
-U.S Virgin Islands
-British Virgin Islands.
Northernmost part of North America include Canada and US state Alaska. Some parts of Canada lie within the Arctic Circle in 66 34'North Latitude. This is the area where all land remains in polar darkness during winter months, peaking in December22 = the wintersolstice.
66 34' area have days remain in sunlight during six months peaking in June 21 = the summer solstice.
Winter and summer solstice occurs because the tilt of the Earth's axis goes towards and away from the Sun.
The north of Canada lies the frozen Arctic Ocean and the North Pole that is at 90 degrees North.