Europe has the lowest number of countries.
False. The continent of Australia is all one country.
Africa has more countries than Australia.
True. The continent of Australia is all one country.
North America does not have any large countries.
False. Canada and the US are the 2nd and 3rd largest countries.
Antarctica is divided into many countries.
False. None of Antarctica is "owned" or claimed by any country.
All continents are separated from each other by water.
False. Europe and Asia are one piece of dry land.
That same yuge piece of dry land is also connected to Africa except for the man-made Suez Canal.
Also, North America and South America are the same piece of dry land except for the man-made Panama Canal.