About this quiz
50 questions covering every section of the note.
This Lok Sewa practice set has 50 multiple-choice questions (Subject: Current Affairs · For: Kharidar, Nayab Subba, Section Officer · Level: Easy). Take the quiz above first; after that, use the study list below to revise every question with its correct answer and a short explanation.
Study list: all 50 questions with answers and explanations
Which is the largest continent?
- A) Africa
- B) Asia ✔
- C) North America
- D) Europe
Why: Asia is the largest continent, both in area (about 30% of land) and population.
Which is the smallest continent?
- A) Europe
- B) Australia ✔
- C) Antarctica
- D) South America
Why: Australia is the smallest continent.
Which is the largest ocean?
- A) Atlantic
- B) Indian
- C) Pacific ✔
- D) Arctic
Why: The Pacific is the largest and deepest ocean.
Which is the smallest ocean?
- A) Arctic ✔
- B) Indian
- C) Southern
- D) Atlantic
Why: The Arctic Ocean is the smallest and shallowest.
Which is the largest country by area?
- A) Canada
- B) China
- C) USA
- D) Russia ✔
Why: Russia is the largest country by area, about 17.1 million km².
Which is the smallest country in the world?
- A) Monaco
- B) Vatican City ✔
- C) San Marino
- D) Maldives
Why: Vatican City, inside Rome, is the smallest country, about 0.44 km².
Which is the longest river in the world?
- A) Amazon
- B) Nile ✔
- C) Yangtze
- D) Mississippi
Why: The Nile, about 6,650 km, is usually counted as the longest river.
Which river carries the most water?
- A) Nile
- B) Amazon ✔
- C) Ganga
- D) Congo
Why: The Amazon carries the most water of any river.
Which is the largest lake in the world?
- A) Lake Superior
- B) Caspian Sea ✔
- C) Lake Baikal
- D) Lake Victoria
Why: The Caspian Sea is the largest lake by area.
Which is the deepest lake?
- A) Baikal ✔
- B) Tanganyika
- C) Caspian
- D) Superior
Why: Lake Baikal in Russia is the deepest lake, about 1,640 m.
The deepest point in the ocean is in the:
- A) Mariana Trench ✔
- B) Java Trench
- C) Puerto Rico Trench
- D) Tonga Trench
Why: The deepest point, Challenger Deep, is in the Mariana Trench.
Which is the highest waterfall?
- A) Niagara
- B) Victoria
- C) Angel Falls ✔
- D) Iguazu
Why: Angel Falls in Venezuela, about 979 m, is the highest waterfall.
Which is the largest island?
- A) Greenland ✔
- B) Australia
- C) Borneo
- D) Madagascar
Why: Greenland is the largest island (Australia counts as a continent).
Which is the largest hot desert?
- A) Gobi
- B) Thar
- C) Sahara ✔
- D) Kalahari
Why: The Sahara in Africa is the largest hot desert.
Which is the largest animal?
- A) African elephant
- B) Blue whale ✔
- C) Giraffe
- D) Shark
Why: The blue whale is the largest animal ever known, up to about 30 m long.
Which is the fastest land animal?
- A) Lion
- B) Cheetah ✔
- C) Horse
- D) Leopard
Why: The cheetah is the fastest land animal, reaching about 100–110 km/h in short bursts.
Which is the largest bird?
- A) Eagle
- B) Ostrich ✔
- C) Emu
- D) Vulture
Why: The ostrich is the largest bird; it cannot fly but runs very fast.
Which is the tallest building in the world?
- A) Burj Khalifa ✔
- B) Shanghai Tower
- C) Petronas Towers
- D) Empire State Building
Why: Burj Khalifa in Dubai, about 828 m, is the tallest building.
Which is the largest planet?
- A) Saturn
- B) Jupiter ✔
- C) Neptune
- D) Earth
Why: Jupiter is the largest planet in the solar system.
Which is the hottest planet?
- A) Mercury
- B) Venus ✔
- C) Mars
- D) Jupiter
Why: Venus is the hottest planet because its thick carbon dioxide atmosphere traps heat.
Which is the most populous country in the world (since 2023)?
- A) China
- B) India ✔
- C) USA
- D) Indonesia
Why: India became the most populous country in 2023, overtaking China.
Which is the largest democracy in the world?
- A) USA
- B) India ✔
- C) Indonesia
- D) Brazil
Why: India is the largest democracy, with the most voters of any country.
Which is the largest desert overall, including cold deserts?
- A) Sahara
- B) Gobi
- C) Antarctica ✔
- D) Arabian
Why: Antarctica is the largest desert overall because it gets very little precipitation.
Which is the driest place on Earth?
- A) Sahara
- B) Atacama Desert ✔
- C) Thar Desert
- D) Gobi
Why: The Atacama Desert in Chile is the driest non-polar place on Earth.
The lowest point on land is the shore of the:
- A) Caspian Sea
- B) Dead Sea ✔
- C) Lake Baikal
- D) Red Sea
Why: The shore of the Dead Sea, about 430 m below sea level, is the lowest point on land.
Lake Baikal is located in:
- A) Canada
- B) Russia ✔
- C) China
- D) Kazakhstan
Why: Lake Baikal is in Siberia, Russia.
Which is the largest freshwater lake by area?
- A) Lake Victoria
- B) Lake Superior ✔
- C) Lake Baikal
- D) Caspian Sea
Why: Lake Superior in North America is the largest freshwater lake by area.
Angel Falls is in:
- A) Brazil
- B) Venezuela ✔
- C) Peru
- D) Colombia
Why: Angel Falls is in Venezuela.
Which is the largest bay in the world?
- A) Hudson Bay
- B) Bay of Bengal ✔
- C) Bay of Biscay
- D) Bay of Fundy
Why: The Bay of Bengal is the largest bay.
Which is the largest gulf in the world?
- A) Persian Gulf
- B) Gulf of Mexico ✔
- C) Gulf of Aden
- D) Gulf of Mannar
Why: The Gulf of Mexico is the largest gulf.
The Challenger Deep lies in which ocean?
- A) Atlantic
- B) Indian
- C) Pacific ✔
- D) Arctic
Why: The Challenger Deep lies in the Pacific Ocean.
Which is the tallest animal?
- A) Elephant
- B) Giraffe ✔
- C) Camel
- D) Ostrich
Why: The giraffe is the tallest animal, up to about 5.5 m.
Which is the largest land animal?
- A) Hippopotamus
- B) African elephant ✔
- C) Rhinoceros
- D) Giraffe
Why: The African elephant is the largest land animal.
The smallest bird in the world is the:
- A) Sparrow
- B) Bee hummingbird ✔
- C) Wren
- D) Sunbird
Why: The bee hummingbird of Cuba, about 5–6 cm long, is the smallest bird.
The largest tropical rainforest is the:
- A) Congo
- B) Amazon ✔
- C) Borneo
- D) Daintree
Why: The Amazon rainforest in South America is the largest tropical rainforest.
Burj Khalifa is located in:
- A) Abu Dhabi
- B) Dubai ✔
- C) Doha
- D) Riyadh
Why: Burj Khalifa is in Dubai, United Arab Emirates.
The longest railway line in the world is the:
- A) Trans-Canada
- B) Trans-Siberian ✔
- C) Qinghai-Tibet
- D) Indian Pacific
Why: The Trans-Siberian Railway in Russia, about 9,300 km from Moscow to Vladivostok, is the longest railway line.
Which is the smallest planet of the solar system?
- A) Mars
- B) Mercury ✔
- C) Venus
- D) Pluto
Why: Mercury is the smallest planet.
Which planet is nearest to the Sun?
- A) Venus
- B) Mercury ✔
- C) Earth
- D) Mars
Why: Mercury is the nearest planet to the Sun.
Which is the coldest continent?
- A) Asia
- B) Europe
- C) Antarctica ✔
- D) North America
Why: Antarctica is the coldest continent.
Which river is the longest in the world?
- A) Amazon
- B) Nile ✔
- C) Yangtze
- D) Mississippi
Why: The Nile is usually counted as the longest river.
The Sahara desert is in which continent?
- A) Asia
- B) Africa ✔
- C) Australia
- D) South America
Why: The Sahara is in Africa.
Greenland belongs politically to:
- A) Canada
- B) Denmark ✔
- C) Norway
- D) Iceland
Why: Greenland is a self-governing territory of Denmark.
The Atacama desert is in:
- A) Argentina
- B) Chile ✔
- C) Mexico
- D) Peru
Why: The Atacama Desert is in northern Chile.
Which ocean is the smallest?
- A) Indian
- B) Southern
- C) Arctic ✔
- D) Atlantic
Why: The Arctic is the smallest ocean.
Which is the largest mammal?
- A) Elephant
- B) Blue whale ✔
- C) Sperm whale
- D) Hippo
Why: The blue whale is the largest mammal, as well as the largest animal.
The Great Wall is in:
- A) Japan
- B) China ✔
- C) Mongolia
- D) Korea
Why: The Great Wall is in China; it is the longest wall ever built.
Which planet is the hottest even though it is not closest to the Sun?
- A) Mercury
- B) Venus ✔
- C) Mars
- D) Jupiter
Why: Venus is hotter than Mercury because its thick atmosphere traps heat (greenhouse effect).
Vatican City is surrounded by which city?
- A) Milan
- B) Rome ✔
- C) Paris
- D) Venice
Why: Vatican City is entirely surrounded by Rome, Italy.
The Caspian Sea is technically a:
- A) Sea
- B) Lake ✔
- C) Bay
- D) Gulf
Why: The Caspian Sea is technically a lake, because it is enclosed by land, even though its water is salty.