World Facts and Geography

Libya holds the record for the highest reliably recorded air temperature on Earth at 58°C in El Azizia in 1922. However, this record was later invalidated, and Death Valley, USA now holds the official record at 56.7°C.

Nihon-koku is Japan's official name in Japanese. The other options are incorrect: Ming Yao is Chinese, Jap is informal English, and Ryukyus refers to a specific island chain.

Until diamonds were discovered in South Africa in the late 1860s, India (specifically the Golconda region) was the world's only known source of diamonds for centuries. This changed around 1896 when South African production surpassed India.

Tibet is known as the "Roof of the World" due to its high elevation averaging around 4,500 meters (14,800 ft) above sea level. It contains the world's highest plateau. China, Japan, and Korea, while in Asia, are not specifically known by this nickname.

Samba is a famous Brazilian music and dance genre that originated in Rio de Janeiro. It's deeply connected to Brazil's Carnival celebrations and cultural identity, making Brazil the correct answer.

Nepal's flag is the only national flag in the world that is not quadrilateral (square or rectangular). It has a unique double-pennant shape with two triangular portions stacked vertically. Japan and Iceland both have standard rectangular flags.

Arica, Chile is recognized as one of the driest inhabited places on Earth, receiving extremely minimal rainfall - some years have absolutely no precipitation. While the Sahara Desert is exceptionally arid, specific locations like Arica have even more consistently dry conditions. The Atacama Desert region containing Arica is often considered the driest hot desert in the world.

Antarctica has no indigenous human population - it is the only continent with no native inhabitants. The continent is governed by the Antarctic Treaty System and is used for scientific research. All people currently in Antarctica are researchers and support staff from various nations, temporarily residing there. Terms like 'Eskimos' refer to Arctic indigenous peoples, not Antarctic.

The .va country code top-level domain (ccTLD) belongs to Vatican City State, the smallest independent state in the world. Vanuatu uses .vu, Venezuela uses .ve, and Vietnam uses .vn. Each country has its unique two-letter code.

The .br ccTLD belongs to Brazil, the largest country in South America. Bulgaria uses .bg (also misspelled as Bulgeria in option A), Barbados uses .bb, and Bermuda uses .bm. The domain code system assigns unique codes to each country.

The .ru ccTLD belongs to Russia, the largest country in the world by land area. Ukraine uses .ua, Rwanda uses .rw, and Romania uses .ro. These two-letter codes are assigned by the international standards organization ISO 3166-1.

The .hu domain extension belongs to Hungary. Despite the typo in option C ('Hungery' instead of 'Hungary'), this is the intended correct answer.

The .mx country code top-level domain belongs to Mexico. Mongolia uses .mn, Maldives uses .mv, and Mali uses .ml.

The .fr domain extension belongs to France. Finland uses .fi, Fiji uses .fj, and French Guiana uses .gp as it's an overseas department of France.