World Geographical Records

The River Thames has its source in the Cotswold Hills in Gloucestershire, England. The Cheviot Hills are on the Scotland-England border, Cambrian Hills are in Wales, and Mayo Hills are in Ireland.

The Moselle River flows through France, Luxembourg, and Germany before joining the Rhine at Koblenz. It's famous for its picturesque vineyards and wine production, especially Riesling.

The Nile is traditionally cited as the longest river in the world at approximately 6,650 km. While some recent studies suggest the Amazon might be longer, the Nile remains the standard answer in most geographical contexts and textbooks.

The Pan-American Highway is generally considered the longest, but among the options provided, the Trans-Canada Highway is one of the longest national highways. However, the stored answer is often debated depending on the definition of 'highway system'.

By definition, a desert is a region with very little precipitation. The Antarctic Desert is the largest in the world, covering about 14 million square kilometers. The Sahara is the largest hot desert, but second overall to the Antarctic.

The Pacific Ocean contains the deepest points on Earth, including the Mariana Trench with Challenger Deep at approximately 10,935 meters. It is not only the largest ocean but also the deepest on average. The Arctic Ocean is the shallowest ocean.

The Arctic Ocean is the smallest and shallowest of the world's five oceans, covering approximately 6% of Earth's surface. The Pacific is the largest, followed by the Atlantic, Indian, and Southern Oceans. The Red Sea is not an ocean but a sea inlet of the Indian Ocean.

The Nile River, flowing through northeastern Africa, is traditionally considered the longest river in the world at approximately 6,650 km. While recent studies suggest the Amazon-Para system might be longer, the Nile remains the standard answer in most educational contexts. The Amazon is the largest by discharge volume.

Greenland is the world's largest island, covering approximately 2.16 million square kilometers. It is an autonomous territory within the Kingdom of Denmark. Australia is technically a continental landmass, not an island, which is why Greenland holds the title of largest island.

The Nile River in Africa is traditionally considered the longest river in the world at approximately 6,650 km (4,130 miles). While some recent studies suggest the Amazon River might be longer when accounting for its seasonal tributaries, the Nile remains the longest river by most conventional measurements and is universally accepted as the correct answer for competitive examinations.

Angel Falls in Venezuela is the tallest waterfall in the world, with a total height of 979 meters (3,212 feet). Yosemite Falls (USA), Baatara Gorge Waterfall (Lebanon), and Bambarakanda Falls (Sri Lanka) are all significant waterfalls but not the tallest.

The South China Sea is the largest sea in the world by surface area at approximately 3.5 million square kilometers. The Arabian Sea and Black Sea are significantly smaller, and the question asks for the biggest sea, not ocean.

Mount Erebus is the southernmost active volcano on Earth, located on Ross Island in Antarctica. It stands approximately 3,794 meters (about 12,448 feet) high and has been continuously active since 1972. Mount Olympus is in Greece/Mars, not Antarctica. The options 'Mount Andews' and 'Mount A2' appear to be fictional or nonsensical.