Lake Huron, in the USA and Canada, covers 59,600 km² and had ancient hunting camps discovered beneath it, with 2025 DNA studies, as per a web source. Superior, Erie, and Ontario lack this finding, making Lake Huron the correct choice.

Lake Superior, in the USA and Canada, is the largest Great Lake by area (82,100 km²), with 2025 studies suggesting its basin formed millions of years ago, as per a web source. Huron, Michigan, and Erie are smaller, making Lake Superior the correct choice.

Hekla, in Iceland, is a highly active volcano monitored for potential 2025 eruptions, as noted in web sources on Iceland’s volcanic activity. Katla, Eyjafjallajökull, and Grímsvötn are also active but less emphasized in 2025, making Hekla the correct choice.

Cumbre Vieja, on La Palma, Canary Islands, Spain, had volcanic ash analyzed in 2025, as reported in web sources. Teide, El Hierro, and Timanfaya are other volcanoes but lack 2025 ash studies, making Cumbre Vieja the correct choice.

Mauna Loa, in Hawaii, USA, is one of the world’s largest volcanoes, with 2025 studies confirming its shared magma source with Kilauea, as per web sources. Mauna Kea and Haleakalā are dormant, Lo‘ihi is underwater, making Mauna Loa the correct choice.

Sakurajima, on Kyushu, Japan, is one of Japan’s most active volcanoes, with 2025 activity reported in X posts. Mount Fuji is iconic but dormant, Aso and Unzen are less active, making Sakurajima the correct choice.

Fuego Volcano, in Guatemala, is highly active, with 2025 eruptions live-streamed, as noted in web sources. Pacaya and Santa María are active, Acatenango is dormant, making Fuego Volcano the correct choice.

Yellowstone Caldera, in Wyoming, USA, is a supervolcano with a magma cap imaged in 2025, as reported in web sources. Long Valley, Valles, and Clear Lake are other calderas but lack 2025 imaging reports, making Yellowstone Caldera the correct choice.

Axial Seamount, an underwater volcano off Oregon’s coast, is predicted to erupt in 2025, causing thousands of earthquakes, as per web sources. Newberry Volcano and Three Sisters are terrestrial, and Cleft Segment is less studied, making Axial Seamount the correct answer.

Popocatépetl, near Mexico City, is Mexico’s most active volcano, with 2025 activity reported in X posts. Colima is active but smaller, Paricutín is dormant, and Pico de Orizaba is less active, making Popocatépetl the correct choice.