Practice World Geography MCQs for PPSC Revenue Officer (BS-16) Geography — topic-wise sets with solved answers.
Q1. Which is the highest mountain peak in the world?
Answer: Mount Everest
Explanation: Mount Everest stands at 8,848.86 m and is located on the Nepal-Tibet border in the Himalayas, making it the highest point on Earth. It was first summited by Edmund Hillary and Tenzing Norgay in 1953.
Q2. Which ocean is the largest and deepest in the world?
Answer: Pacific Ocean
Explanation: The Pacific Ocean covers approximately 165 million km² and contains the deepest point on Earth, the Challenger Deep in the Mariana Trench at about 11,034 m. It is larger than all of Earth's landmasses combined.
Q3. What is the deepest point on Earth?
Answer: Challenger Deep
Explanation: Challenger Deep in the Mariana Trench (western Pacific Ocean) reaches approximately 11,034 m below sea level, making it the deepest known point on Earth. It was first reached by Jacques Piccard and Don Walsh in 1960.
Q4. Which lake is the deepest in the world?
Answer: Lake Baikal
Explanation: Lake Baikal in Siberia, Russia, is the world's deepest lake at 1,642 m and also holds approximately 20% of the world's unfrozen surface fresh water. It is also the oldest lake at around 25-30 million years.
Q5. Which is the second highest mountain in the world?
Answer: K2
Explanation: K2 stands at 8,611 m and is located on the Pakistan-China border in the Karakoram range, making it the world's second highest mountain. It is considered more technically challenging to climb than Everest and has a higher fatality rate.
Q6. What is the largest overall desert in the world (including cold deserts)?
Answer: Antarctic Desert
Explanation: The Antarctic Desert covers approximately 14.2 million km², making it the world's largest desert overall. A desert is defined by low precipitation (less than 250 mm/year), and Antarctica receives very little precipitation as snow.
Q7. Which is the largest lake by surface area in the world?
Answer: Caspian Sea
Explanation: The Caspian Sea covers approximately 371,000 km² and is the world's largest lake by surface area, though it is a salt lake sometimes classified as a sea. It is bordered by Russia, Kazakhstan, Turkmenistan, Iran, and Azerbaijan.
Q8. What is the highest peak in the Alps?
Answer: Mont Blanc
Explanation: Mont Blanc stands at 4,808 m on the French-Italian border and is the highest peak in the Alps and in all of Western Europe. It was first summited in 1786 by Jacques Balmat and Michel-Gabriel Paccard.
Q9. Which continent has the highest average elevation?
Answer: Antarctica
Explanation: Antarctica has the highest average elevation of any continent at approximately 2,300 m, largely due to its thick ice sheet. Asia has the highest individual peaks but a lower average elevation than Antarctica.
Q10. What is the Tropic of Cancer's latitude?
Answer: 23.5° North
Explanation: The Tropic of Cancer lies at 23.5° North latitude and marks the northernmost point where the Sun can be directly overhead at noon (during the June solstice). It passes through countries like Mexico, Egypt, India, and China.
Q11. Which biome covers the largest area on Earth?
Answer: Taiga (Boreal Forest)
Explanation: The taiga, or boreal forest, is the world's largest terrestrial biome, stretching across northern Canada, Russia, and Scandinavia and covering about 27% of Earth's land surface. It is characterized by cold winters and coniferous trees like spruce and fir.
Q12. In the Köppen climate classification, what does the letter "A" denote?
Answer: Tropical climate
Explanation: In the Köppen climate classification system, "A" denotes tropical climates, characterized by average temperatures above 18°C in all months and high annual precipitation. This category includes tropical rainforest (Af), monsoon (Am), and savanna (Aw) climates.
Q13. Which is the longest river in the world by traditional measurement?
Answer: Nile River
Explanation: The Nile River is traditionally cited as the world's longest river at approximately 6,650 km, flowing northward through northeastern Africa into the Mediterranean Sea. The Amazon is the largest by discharge volume and some modern measurements place it as the longest.
Q14. Which continent is the Andes mountain range located on?
Answer: South America
Explanation: The Andes run approximately 7,000 km along the entire western coast of South America, passing through Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. The highest peak is Aconcagua at 6,961 m in Argentina.
Q15. The Ring of Fire is associated with which ocean?
Answer: Pacific Ocean
Explanation: The Ring of Fire encircles the Pacific Ocean basin and is a zone of intense seismic and volcanic activity stretching about 40,000 km. It accounts for approximately 75% of the world's volcanoes and 90% of its earthquakes.
Q16. Which is the largest freshwater lake by surface area?
Answer: Lake Superior
Explanation: Lake Superior, shared between the United States and Canada, is the world's largest freshwater lake by surface area at approximately 82,100 km². It is one of the five Great Lakes of North America and holds 10% of the world's surface fresh water.
Q17. Which tectonic process forms mid-ocean ridges?
Answer: Seafloor spreading
Explanation: Seafloor spreading occurs at divergent plate boundaries where tectonic plates move apart, allowing magma to rise and form new oceanic crust, creating mid-ocean ridges. The Mid-Atlantic Ridge is a prime example, spreading at 2-5 cm per year.
Q18. Which river has the greatest discharge volume in the world?
Answer: Amazon River
Explanation: The Amazon River carries approximately 20% of all freshwater discharged into the world's oceans, with an average discharge of about 209,000 m³/s. It drains the world's largest tropical rainforest across nine South American countries.
Q19. The Himalayas were formed by the collision of which two tectonic plates?
Answer: Indian Plate and Eurasian Plate
Explanation: The Himalayas formed about 50 million years ago when the Indian Plate collided with the Eurasian Plate, pushing up the Tethys Sea sediments into the world's highest mountain range. This collision continues today, making the Himalayas grow by about 5 mm per year.
Q20. Which climate type is found between 30° and 60° North and South latitudes?
Answer: Temperate climate
Explanation: Temperate climates (Köppen C and D types) are found between roughly 30° and 60° latitude in both hemispheres, experiencing distinct seasons with moderate temperatures. They support most of the world's agricultural production and population.
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