China
Brazil
India
Tehran
Canada
Australia is not the world's largest nation in area. It is the smallest continent. Therefore, the nation that is currently the world's largest would still be the world's largest - and that is the Russian federation, with an area of 178,075,400 sq km.
Asia.
India because I come from India and with great respect I say India has the largest democracy
The US has the second largest economy in the world, as the European Union has the largest economy, although not a nation. Out of countries, China has the second largest economy.
Worlds largest animal: Blue Whale
the worlds largest swamp is the Sudd thx for asking
USA has the worlds largest rail network.