World Facts and Geography

India is the world's largest producer of mica, accounting for about 60% of global output. The mica belt in Andhra Pradesh and Jharkhand contains high-quality deposits.

China is the world's largest producer of cotton, followed by India and the United States. China's extensive cotton belt in Xinjiang produces the highest yields globally.

Japan has historically been India's largest iron ore export market due to its industrial needs and limited domestic iron ore resources. This trade relationship has been significant since the mid-20th century.

The United States is India's largest trading partner in terms of total trade (exports + imports), followed by China and the UAE.

The Durgapur Steel Plant in West Bengal was set up in 1959 in collaboration with the United Kingdom (Britain). It was one of the three major steel plants established during the Second Five Year Plan.

Korea has been historically known as the 'Land of Morning Calm' (Joseon in Korean), a poetic name referring to the peaceful, serene beauty of Korean mornings and the country's natural landscapes.

This question is problematic as 'poorest' is subjective and depends on the metric (GDP per capita, HDI, poverty rate) and the timeframe. Somalia has historically ranked among the world's poorest countries by various indices, but Sierra Leone also ranks extremely low on human development indicators. Such comparisons are context-dependent and change over time.

The Toba supervolcano in Indonesia (Sumatra island) contains the world's greatest volcanic crater, approximately 100 km by 30 km in size. It was formed by a massive super-eruption around 74,000 years ago, one of the largest volcanic events in Earth's history. Lake Toba now fills much of this caldera.

Brazil is the world's leading coffee producer, accounting for about one-third of global coffee production. The country's ideal climate, particularly in the Minas Gerais region, produces both Arabica and Robusta varieties. Other coffee-producing nations include Vietnam, Colombia, and Indonesia, but Brazil consistently dominates production.

Brazil is the world's largest sugar producer, followed by India. Cuba and Indonesia are significant producers but rank below Brazil.

Sri Lanka celebrates Independence Day on February 4th, commemorating independence from British rule in 1948. Chile, Estonia, Japan, and Serbia have different independence dates.

Correct option is (3).

Correct option is (3).