That is a question that's somewhat difficult to answer, as there is no one right answer. Many sources offer different answers, and depending on the source, there are 189, 191, 192, 193, 194 or 195 independent countries in the world today.
As of May 1, 2008, the United Nations has 192 members (including Montenegro and Serbia - the two newest nations). That number does not include the Vatican, and it doesn't (yet) include Kosovo (disclaimer).
Regarding England, Scotland and Wales, though all are widely considered individual countries, they are all still a part of the United Kingdom (UK), a European country, and therefore included within the United Kingdom on our country list below.
The US State Department recognizes 194 independent countries around the world, but that list of countries reflects the political agenda of the United States of America. As an example, it includes Kosovo, but does not include Taiwan, as China claims that Taiwan (the ROC) is simply a province of China.
Most of the current World Almanacs use 193 countries, which is probably the best answer, but what about Kosovo? (disclaimer) Palestine? Greenland? Western Sahara? The political world is constantly changing and our list of independent nations is shown below. Note that we don't say that our list is the ONLY answer, just that it's our answer.
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because that's the way planet earth is
3 including planet earth
20
there is no new planet tyche
There is a planet that can support life, it is just that the earth still has many years to come before we go to another planet
because that's the way planet earth is
There are no countries in Antarctica. All of planet earth south of 60 degrees S is governed by the Antarctic Treaty, which sets that area aside for the scientific study of the health of planet earth.
None, there is no continent with the name Ashia on the planet Earth.
Continental drift is one of the many affects of the earth and it can harm the earth because it could crash into other countries
One - itself. Earth is a planet.
This is planet Earth, so one Earth day is one day on this planet.
There is one moon revolving around planet Earth.
Tales from Planet Earth has 307 pages.
Tales from the Planet Earth has 268 pages.
3 including planet earth
196
There are nearly 2,500 recognized minerals on Earth.