Q. In which nation will you find the world’s largest helium-rich natural gas reservoirs?
Answer: USA
Notes: The biggest reserves of helium-rich natural gas can be found in the United States, specifically in the regions of Kansas, Oklahoma, and Texas. These sites, especially the Hugoton field, are commonly referred to as the "Helium Capital of the World". Helium, a valuable resource used in a variety of fields, from medical imaging to electronics, is increasingly becoming scarce globally.