World Geographical Records

The Challenger Deep in the Mariana Trench is the deepest known point in Earth's oceans, reaching approximately 10,928 meters (35,853 feet) below sea level in the western Pacific Ocean.

Angel Falls in Venezuela is the world's tallest uninterrupted waterfall at 979 meters. Niagara Falls is famous but much shorter, while the Alps are mountains and Nigeria has no such waterfall.

The Amazon River crosses the equator twice - once in its upper reaches in Peru and once in its lower course in Brazil. This unique geographical feature occurs because the river flows from the southern hemisphere to the northern hemisphere and back, making it the only major river to cross the equator twice.

The International Date Line (IDL) is an imaginary line on the surface of Earth that runs from the North Pole to the South Pole, mostly through the Pacific Ocean. It demarcates the change of one calendar day to the next. The IDL is located approximately along the 180° longitude but deviates around certain island groups to avoid dividing them into two different days. It is not in the Atlantic, Indian, or Arctic oceans.

Earth's gravity (g) is highest at the poles because: (1) poles are closer to Earth's center due to oblate shape, and (2) centrifugal force from rotation is zero at poles. Both poles have equal gravity, but North Pole is conventionally listed as the answer.

Angel Falls in Venezuela is the world's tallest waterfall at 979 meters (3,212 feet). Niagara Falls (misspelled as 'Nigera') is famous but not the tallest, Gersoppa (Jog Falls) is India's second-highest, and Yosemite Falls is North America's tallest but shorter than Angel Falls.

This is a trick question about measurement reference points. Mount Everest rises 8,849m above sea level, while the Mariana Trench extends 10,994m below sea level - a total depth from the surface of 10,994m. Since the question asks which is 'taller' measured from their respective reference (sea level), the Mariana Trench's greater depth from the surface makes it the correct answer in this context.

The Hwang Ho (Yellow River) is called 'The Sorrow of China' due to its devastating floods that have killed millions throughout Chinese history. 'Hwang Ho' is the older Wade-Giles romanization of what is now spelled 'Huang He' in Pinyin. The river's frequent and destructive flooding earned it this somber nickname.

São Paulo is Brazil's largest city by population, with over 12 million inhabitants in the city proper and over 20 million in the metropolitan area. It is Brazil's financial and economic center. Brasília is the capital (but much smaller), Rio de Janeiro is famous but smaller, and Montes Claros is a minor city.

The Arctic Ocean is the smallest ocean in the world, covering approximately 14 million square kilometers. It is significantly smaller than the Pacific, Atlantic, and Antarctic (Southern) oceans. The Pacific is the largest, not the smallest.

The Sahara Desert is the largest hot desert in the world and the third largest desert overall after Antarctica and the Arctic. It covers approximately 9.2 million square kilometers across North Africa. The Arabian, Gobi, and Thar deserts are all significantly smaller.

Greenland is the world's largest island, covering approximately 2.16 million square kilometers. It is significantly larger than the next largest island, New Guinea. Australia is considered a continental landmass, not an island.