World Geographical Records

The Pacific Ocean is by far the world's largest ocean, covering approximately 63 million square miles - larger than all of Earth's land areas combined. It spans from the Arctic in the north to the Southern Ocean in the south and separates Asia/Australia from the Americas.

Lake Baikal in southern Siberia, Russia, is the world's deepest lake at 1,642 meters (5,387 ft). It's also the world's oldest lake (25-30 million years) and largest by volume, holding about 20% of all unfrozen fresh water on Earth's surface.

The Sahara Desert in North Africa is the world's largest hot desert, covering approximately 9.2 million square kilometers. While Antarctica is technically larger as a cold desert, the Sahara is universally recognized as the largest desert in common usage and educational contexts.

The Nile River, stretching approximately 6,650 km (4,130 miles), is generally considered the longest river in the world. It flows north through northeastern Africa to drain into the Mediterranean Sea.

By discharge volume (amount of water flowing), the Amazon River is the largest, releasing about 209,000 cubic meters per second. By length, the Nile is typically considered longest. The question asks 'largest' and the correct answer refers to discharge volume.

Sea otters are found along the coasts of the northern Pacific Ocean, from northern Japan to California. They are NOT native to South America, Atlantic Ocean, or Arabian Sea. The North Pacific is their natural habitat.

The Thar Desert is indeed Asia's third-largest desert, after the Gobi Desert (Mongolia/China) and the Arabian Desert (West Asia). It covers approximately 200,000 square kilometers across India and Pakistan.

The Caspian Sea is the largest inland body of water in the world by area, often classified as the world's largest lake. It covers approximately 371,000 square kilometers and is bordered by five countries.

Burj Dubai (now officially called Burj Khalifa since its 2010 opening) in Dubai, UAE, is the tallest building in the world at 828 meters. Taipei 101 was the tallest before Burj Dubai's completion. Burj Al Arab is a luxury hotel, not the tallest. Petronas Towers were the tallest in 1998-2004 but are now surpassed.

Alaska is the largest state in the USA by land area, covering over 663,000 square miles. It is more than twice the size of Texas, the second-largest state. The other options listed are much smaller in comparison.

The Amazon River is the largest river in the world by discharge volume and drainage basin. It carries more water than the next seven largest rivers combined. The Nile is the longest by length, but Amazon has the greatest volume. Ganga, Brahmaputra, and Godavari are major Indian rivers but smaller in comparison.

Bambarakanda Falls, located in the Kalupahana area in central Sri Lanka, is the highest waterfall in the country at 263 meters (863 feet). Diyaluma Falls is the second highest at 220 meters, while Dunhinda Falls is 63 meters. 'Pavan' is not a recognized Sri Lankan waterfall.

The Nile River, stretching approximately 6,650 km, is traditionally considered the longest river in the world. While some recent studies suggest the Amazon might be longer, the Nile remains the standard answer in most educational contexts.

Mount Everest, at 8,848.86 meters above sea level, is the highest mountain on Earth. It's located in the Mahalangur Himal sub-range of the Himalayas on the border between Nepal and China (Tibet).