#61

Which African waterfall had evidence of early human activity studied in 2025?

(a) Kalambo Falls

(b) Lumangwe Falls

(c) Tugela Falls

(d) Victoria Falls

Explanation: Kalambo Falls, on the Zambia-Tanzania border, had evidence of early human activity linked to its water and forest resources studied in 2025, as per a web source. Victoria, Tugela, and Lumangwe lack this finding, making Kalambo Falls the correct choice.

#62

Which Minnesota waterfall, highlighted in 2025, is known for its mysterious split flow?

(a) High Falls

(b) Devil’s Kettle Falls

(c) Gooseberry Falls

(d) Minnehaha Falls

Explanation: Devil’s Kettle Falls, in Minnesota’s Judge C.R. Magney State Park, is known for its mysterious split flow, highlighted for 2025 tourism, as per a web source. High, Gooseberry, and Minnehaha are less unique, making Devil’s Kettle Falls the correct choice.

#63

Which Swiss waterfall in Lauterbrunnen was visited for its beauty in 2025?

(a) Giessbach Falls

(b) Trümmelbach Falls

(c) Staubbach Falls

(d) Reichenbach Falls

Explanation: Staubbach Falls, in Switzerland’s Lauterbrunnen Valley, is a 297 m waterfall visited for its beauty in a 2025 X post. Reichenbach, Giessbach, and Trümmelbach are nearby but less emphasized, making Staubbach Falls the correct choice.

#64

Which African desert, the world’s largest hot desert, had evidence of a 9,000-year-old lake discovered in 2025?

(a) Namib Desert

(b) Kalahari Desert

(c) Libyan Desert

(d) Sahara Desert

Explanation: The Sahara Desert, covering 9.2 million km² in North Africa, is the world’s largest hot desert, with 2025 studies revealing a 9,000-year-old lake and AI uncovering 5,000-year-old civilizations, as per web sources. Kalahari, Namib, and Libyan are smaller or sub-regions, making Sahara Desert the correct choice.

#65

What is the Middle Eastern desert with a 2025 study showing 8 million years of lush periods?

(a) Rub’ al-Khali

(b) Negev Desert

(c) Arabian Desert

(d) Syrian Desert

Explanation: The Arabian Desert, spanning 2.33 million km², had 2025 studies revealing 8 million years of ‘Green Arabia’ with rivers and a 9,000-year-old lake in the Empty Quarter, as per web sources. Syrian and Negev are smaller, and Rub’ al-Khali is a sub-region, making Arabian Desert the correct choice.

#66

Which Asian desert, the fifth largest globally, yielded a new mammal fossil in 2025?

(a) Taklamakan Desert

(b) Kyzylkum Desert

(c) Thar Desert

(d) Gobi Desert

Explanation: The Gobi Desert, covering 1.3 million km² in Mongolia and China, is the fifth largest desert and had a 2025 discovery of a dinosaur-era mammal fossil, as noted in a web source and an X post. Taklamakan, Thar, and Kyzylkum are smaller, making Gobi Desert the correct answer.

#67

What is the South American desert, the driest on Earth, studied for microbes in 2025?

(a) La Guajira Desert

(b) Monte Desert

(c) Atacama Desert

(d) Patagonian Desert

Explanation: The Atacama Desert, spanning 105,000 km² in Chile and Peru, is the driest desert, with 2025 studies finding living microbes, as per a web source and an X post. Patagonian, La Guajira, and Monte are less extreme, making Atacama Desert the correct choice.

#68

Which U.S. desert is home to Death Valley and 16 new grasshopper species found in 2025?

(a) Great Basin Desert

(b) Sonoran Desert

(c) Chihuahuan Desert

(d) Mojave Desert

Explanation: The Mojave Desert, covering 124,000 km² in the U.S., includes Death Valley and had 16 new grasshopper species identified in 2025, as per a web source. Sonoran, Great Basin, and Chihuahuan are nearby but lack this discovery, making Mojave Desert the correct choice.

#69

Which North American desert is known for its saguaro cacti and 2025 census concerns?

(a) Great Basin Desert

(b) Mojave Desert

(c) Sonoran Desert

(d) Chihuahuan Desert

Explanation: 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.

#70

Which Asian desert in China is one of the largest sandy deserts, studied for formation in 2025?

(a) Thar Desert

(b) Ordos Desert

(c) Gobi Desert

(d) Taklamakan Desert

Explanation: 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.

#71

Which Patagonian glacier, dubbed the world’s most beautiful in 2025, is known for its dynamic shifts?

(a) Viedma Glacier

(b) Upsala Glacier

(c) Spegazzini Glacier

(d) Perito Moreno Glacier

Explanation: 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.

#72

Which Icelandic glacier, Europe’s largest, forms stunning ice caves studied in 2025?

(a) Svínafellsjökull Glacier

(b) Mýrdalsjökull Glacier

(c) Vatnajökull Glacier

(d) Langjökull Glacier

Explanation: 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.

#73

Which Himalayan glacier was declared ‘dead’ in 2025 with Asia’s first commemorative plaque?

(a) Gangotri Glacier

(b) Khumbu Glacier

(c) Siachen Glacier

(d) Yala Glacier

Explanation: 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.

#74

Which Greenland glacier moved faster than expected in 2025 studies?

(a) Petermann Glacier

(b) Helheim Glacier

(c) Sermeq Kujalleq

(d) Kangerlussuaq Glacier

Explanation: 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.

#75

Which South American rainforest, the world’s largest, struggles to adapt to climate change in 2025?

(a) Valdivian Rainforest

(b) Atlantic Forest

(c) Chocó Rainforest

(d) Amazon Rainforest

Explanation: 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.

#76

Which northern forest, studied in 2025 for carbon sequestration, spans Russia and Canada?

(a) Tundra Forest

(b) Laurentian Forest

(c) Taiga (Boreal Forest)

(d) Siberian Forest

Explanation: The Taiga, or Boreal Forest, spanning Russia and Canada, was studied in 2025 for its carbon sequestration potential in young trees, as per a web source. Tundra, Laurentian, and Siberian are not as extensive, making Taiga (Boreal Forest) the correct choice.

#77

Which U.S. forest region was studied in 2025 for climate resilience and wildlife refuge?

(a) Rocky Mountain Forests

(b) Sierra Nevada Forests

(c) Ozark Forests

(d) Appalachian Forests

Explanation: Appalachian Forests, in the eastern USA, were studied in 2025 for climate resilience and as wildlife refuges, as per a web source. Rocky Mountain, Sierra Nevada, and Ozark are less emphasized, making Appalachian Forests the correct choice.

#78

Which Southeast Asian forest in Brunei had a fossil of an endangered tree found in 2025?

(a) Ulu Temburong National Park

(b) Belalong Rainforest

(c) Bukit Barisan Forest

(d) Lambir Hills Forest

Explanation: Ulu Temburong National Park, in Brunei, had a fossil of an endangered tropical tree discovered in 2025, as reported in a web source. Belalong, Lambir Hills, and Bukit Barisan lack this find, making Ulu Temburong National Park the correct choice.

#79

Which Chinese forest was studied in 2025 for tree diversity in reforestation efforts?

(a) Wuyi Mountain Forest

(b) Changbai Mountain Forest

(c) Xishuangbanna Forest

(d) Hainan Rainforest

Explanation: Xishuangbanna Forest, in China’s Yunnan Province, was part of 2025 studies showing increased tree diversity enhances reforestation resilience, as per a web source. Changbai, Wuyi, and Hainan were not highlighted, making Xishuangbanna Forest the correct choice.

#80

Which Swiss forest was noted in 2025 for adapting to storms with more deadwood?

(a) Swiss National Park Forest

(b) Jura Forests

(c) Ticino Forests

(d) Aargau Forests

Explanation: Swiss National Park Forest, in Switzerland, was noted in 2025 for adapting to storms and drought with more deadwood, vital for species, as per a web source. Jura, Aargau, and Ticino were not specified, making Swiss National Park Forest the correct choice.

May 2025 Current Affairs MCQs & Solutions