Australia, officially known as the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands. It is the largest country in Oceania and the world’s sixth-largest country by total area.
Climate is the long-term average of weather, typically averaged over a period of 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years.
India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by land area, and the most populous democracy in the world. New Delhi is the capital.
It has an exceptionally diverse population, with Hindus, Muslims, Christians, Sikhs, Buddhists, Jains and other religions speaking over 21 recognised languages.
Japan is an island country in East Asia located in the northwest Pacific Ocean. Part of the Pacific Ring of Fire, Japan comprises an archipelago of 6,852 islands covering 377,975 square kilometers (145,937 sq mi); the country’s five main islands, from north to south, are Hokkaido, Honshu, Shikoku, Kyushu, and Okinawa. Tokyo is Japan’s capital and largest city.
Japan is divided into 47 administrative prefectures and eight traditional regions. The Greater Tokyo Area is the most populous metropolitan area in the world, with more than 37.4 million residents.
Japan is a great power and a member of numerous international organizations, including the United Nations (since 1956), the OECD, and the G7. Japan is a leader in the automotive and electronics industries.
The United States is a country also known as the United States of America, USA, US or just America. There are fifty states in the union, which is a federal republic ruled by a representative democracy. Nearly ten million square kilometres are inhabited by over 300 million people. The majority of Americans speak English.