Geography

The world's longest mountain range is the Mid-Ocean Ridge, which is mostly underwater and extends over 65,000 km. Since it is not listed among the options, 'None of these' is the correct choice.

The Karakoram mountain range spans the borders of India, Pakistan, and China, making all these countries part of its geographical presence.

Chile has a long coastline along the Pacific Ocean, which is the longest shore it borders. The other seas listed do not border Chile.

Duncan Strait is located between the islands of the Andaman and Nicobar Islands, which lie in the Indian Ocean. Therefore, the correct ocean is the Indian Ocean.

Zealandia is often referred to as the 8th continent due to its distinct geological characteristics and large submerged landmass mostly underwater near New Zealand. It is recognized by many geologists as a continent separate from Australia and Antarctica.

Cyclonic or frontal rainfall occurs over large areas of the world, especially in mid-latitude regions where warm and cold air masses meet, making it the most widespread type of rainfall globally. Orographic and convectional rainfall are more localized.

Mount Whitney is the highest peak in the 48 contiguous U.S. states, standing at 14,505 feet. The other options are either lower in elevation or located outside the contiguous states.

The Snowy Mountains are a well-known mountain range located in Australia, famous for their snowfields and ski resorts, making option A the correct answer.

Asia is generally recognized to have 48 countries according to the United Nations and most geopolitical sources. This count includes all widely recognized sovereign states within the continent.

Sri Lanka has the highest urban population ratio among South Asian countries, with a significant percentage of its population living in urban areas compared to India, Pakistan, and Bhutan.