No country has scientific claims; all claimant countries exude territorial claims.
The number is seven.
Antarctica is not 'owned' by any country, however, many countries claim territory on the continent. Some of these claims overlap. The Antarctic Treaty of 1960 put all claims on hold, thus preventing any exploitation by any claimant, and prohibited future claims.
The same as other countries - none. No country owns any of Antarctica. Many have claims and several of those overlap. The Antarctic Treaty ignores land claims and forbids future land claims.
Several countries claim territory on the Antarctic continent -- some of which overlap each other. However, the Antarctic Treaty makes these claims and future claims invalid. No country owns any part of Antarctica.
There are no states in Antarctica. It's all just one continent. There are different areas claimed by different countries and some of these claims overlap each other. Claims have no meaning, however, according to the Antarctic Treaty, which holds all claims in abeyance.
Japan makes no claim to any territory on the Antarctic continent. None of Antarctica is owned by any country. Many countries have claims, and no future claims can be made according to the Antarctic Treaty.
Other than scientific research, several companies have claims on parts of Antarctica for its resources, but have signed treaties to defer their development.The UK, France, and Norway have exploratory claims based on "discovery" of the Antarctic (in the centuries when lands were being claimed as colonies).Argentina, Chile, Australia, and New Zealand have claims based on the continent's regional proximity to their countries.
There are no countries in Antarctica.
Argentina and Chile :)
Australia has one country on it. Antarctica has zero countries on it. (Several countries claim some portion of Antarctica, but those claims are not internationally recognized.)
No continents have claims on Antarctica.
New Zealand, Australia, France, Chile, Argentina, Great Britain, and Norway all claim territory on the Antarctic continent. Some of these claims overlap each other. The Antarctic Treaty holds all claims in abeyance and prohibits future claims.
Antarctica is not a possession of any country on earth, although several countries have made claims to pie-shaped slices of the continent.