The Amazon Rainforest, spanning 6.7 million km² across South America, is the world’s largest and was studied in 2025 for its struggle to adapt to climate change, as per a web source. Valdivian, Atlantic, and Chocó are smaller, making Amazon Rainforest the correct choice.

Lake Victoria’s greatest depth is 270 feet (82 meters), much shallower than Lake Superior or Lake Baikal.

Sermeq Kujalleq, also known as Jakobshavn Glacier, in Greenland, moved faster than expected in 2025 studies, contributing to sea level rise, as per a web source. Helheim, Kangerlussuaq, and Petermann are also active but less emphasized, making Sermeq Kujalleq the correct choice.

Yala Glacier, in Nepal’s Hindu Kush Himalayas, was declared ‘dead’ in 2025 due to rapid melting, receiving Asia’s first commemorative plaque, as reported in X posts. Gangotri, Siachen, and Khumbu are retreating but not ‘dead,’ making Yala Glacier the correct choice.

Vatnajökull Glacier, covering 8,100 km² in Iceland, is Europe’s largest, with 2025 studies of its blue ice caves formed by meltwater, as per X posts. Langjökull, Mýrdalsjökull, and Svínafellsjökull are smaller, making Vatnajökull Glacier the correct choice.

Perito Moreno Glacier, in Argentina’s Santa Cruz, is celebrated as the world’s most beautiful by Forbes in 2025, known for its active calving and shifts, as noted in X posts. Upsala, Viedma, and Spegazzini are nearby but less iconic, making Perito Moreno Glacier the correct choice.

Death Valley, part of the Mojave Desert, is located in California, USA. It holds the record for the hottest temperature ever recorded on Earth, reaching 56.7°C in 1913.

The Atacama Desert, located primarily in northern Chile, is one of the driest places on Earth. Its extreme aridity makes it a unique environment, used as a testing ground for Mars exploration technologies.

The Taklamakan Desert, covering 337,000 km² in China, is a major sandy desert studied in 2025 for formation patterns, as per a web source. Gobi is rocky, Thar is in India, and Ordos is smaller, making Taklamakan Desert the correct choice.

The Sonoran Desert, spanning 260,000 km² in the U.S. and Mexico, is famous for saguaro cacti, with 2025 census concerns about die-offs, as per a web source. Mojave, Chihuahuan, and Great Basin lack saguaros, making Sonoran Desert the correct choice.