Current Affairs MCQs – Geography & Environment Set 2 (20 Explained)

This is a 20-question MCQ set on Geography & Environment (Set 2) — world geography, rivers, deserts, oceans, and environment. Attempt all 20 in 25 minutes without looking at the answers, then check the explained answers and review your weak section. These are original practice questions, not copied from FPSC papers or competitor question banks, and this site is not affiliated with FPSC. Scoring: 18–20 = strong. 15–17 = good. 12–14 = fair, revise the sections you missed. Below 12 = study the weak-section review, then re-attempt in 2 days.

Questions (Q1–Q20)

Q1. Which is the longest river in Africa? A) Congo River B) Nile River C) Niger River D) Zambezi River

Q2. Which is the smallest continent in the world? A) Europe B) Australia C) Antarctica D) Africa

Q3. Which desert is the largest in Asia? A) Sahara Desert B) Gobi Desert C) Arabian Desert D) Kalahari Desert

Q4. Which is the deepest ocean in the world? A) Atlantic Ocean B) Indian Ocean C) Arctic Ocean D) Pacific Ocean

Q5. Which country has the largest rainforest in the world? A) Indonesia B) Brazil C) Peru D) Colombia

Q6. Which is the highest waterfall in the world? A) Niagara Falls B) Angel Falls C) Victoria Falls D) Iguazu Falls

Q7. Which gas is the main cause of global warming? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen

Q8. Which is the largest lake in the world? A) Lake Baikal B) Lake Superior C) Caspian Sea D) Lake Victoria

Q9. Which layer protects us from UV rays? A) Troposphere B) Stratosphere (Ozone layer) C) Mesosphere D) Thermosphere

Q10. Which is the largest island country in the world? A) Madagascar B) Indonesia C) Japan D) New Zealand

Q11. Which river flows through London? A) Seine B) Thames C) Danube D) Rhine

Q12. Which is the largest glacier in the world? A) Lambert Glacier B) Greenland Ice Sheet C) Vatnajökull D) Siachen Glacier

Q13. Which country is known as the “Land of the Rising Sun”? A) China B) Korea C) Japan D) Thailand

Q14. Which is the second-largest ocean in the world? A) Indian Ocean B) Atlantic Ocean C) Arctic Ocean D) Southern Ocean

Q15. Which is the largest mountain range in the world? A) Himalayas B) Andes C) Rockies D) Alps

Q16. Which is the main source of oxygen on Earth? A) Animals B) Plants C) Rocks D) Oceans

Q17. Which is the largest coral reef system in the world? A) Belize Barrier Reef B) Great Barrier Reef C) Red Sea Coral Reef D) Maldives Coral Reef

Q18. Which country has the most islands in the world? A) Canada B) Sweden C) Indonesia D) Philippines

Q19. Which is the longest river in South America? A) Paraná River B) Amazon River C) Orinoco River D) São Francisco River

Q20. Which is the largest hot desert in the world? A) Gobi Desert B) Sahara Desert C) Arabian Desert D) Kalahari Desert

Answer Key + Explained Answers

Q1 – B) Nile River. Nile is the longest river in Africa (about 6,650 km). Congo is second-longest in Africa, Niger is third, Zambezi is fourth.

Q2 – B) Australia. Australia is the smallest continent. Europe is second-smallest, Antarctica is fifth-largest, Africa is second-largest.

Q3 – B) Gobi Desert. Gobi is the largest desert in Asia. Sahara is in Africa, Arabian is in Arabia, Kalahari is in Africa.

Q4 – D) Pacific Ocean. Pacific is the deepest ocean (Mariana Trench). Atlantic is second-deepest, Indian is third, Arctic is shallowest.

Q5 – B) Brazil. Brazil has the largest rainforest (Amazon). Indonesia has rainforests, Peru has Amazon, Colombia has rainforests — but Brazil has the largest share.

Q6 – B) Angel Falls. Angel Falls (Venezuela) is the highest waterfall (979 m). Niagara is famous, Victoria is wide, Iguazu is wide.

Q7 – C) Carbon dioxide. CO2 is the main cause of global warming (greenhouse gas). Oxygen is for breathing, nitrogen is inert, hydrogen is trace.

Q8 – C) Caspian Sea. Caspian Sea is the largest lake (by area). Lake Baikal is deepest, Lake Superior is largest freshwater by area, Lake Victoria is largest in Africa.

Q9 – B) Stratosphere (Ozone layer). The ozone layer (in the stratosphere) protects us from UV rays. Troposphere is lowest, mesosphere is middle, thermosphere is upper.

Q10 – B) Indonesia. Indonesia is the largest island country (over 17,000 islands). Madagascar is an island country, Japan is an island country, New Zealand is an island country — but Indonesia is largest.

Q11 – B) Thames. Thames flows through London. Seine flows through Paris, Danube flows through Vienna, Rhine flows through Germany.

Q12 – A) Lambert Glacier. Lambert Glacier (Antarctica) is the largest glacier. Greenland Ice Sheet is an ice sheet, Vatnajökull is in Iceland, Siachen is in Karakoram.

Q13 – C) Japan. Japan is known as the “Land of the Rising Sun”. China is the Middle Kingdom, Korea is the Land of Morning Calm, Thailand is the Land of Smiles.

Q14 – B) Atlantic Ocean. Atlantic is the second-largest ocean. Indian is third, Arctic is smallest, Southern is fourth.

Q15 – B) Andes. Andes is the largest mountain range (by length, about 8,900 km). Himalayas is highest, Rockies is in North America, Alps is in Europe.

Q16 – B) Plants. Plants are the main source of oxygen (photosynthesis). Animals consume oxygen, rocks do not produce oxygen, oceans produce oxygen via phytoplankton — but plants (including phytoplankton) are the source.

Q17 – B) Great Barrier Reef. Great Barrier Reef (Australia) is the largest coral reef system. Belize is second, Red Sea is smaller, Maldives is smaller.

Q18 – B) Sweden. Sweden has the most islands (about 221,800). Canada has many islands, Indonesia has 17,000+, Philippines has 7,600+ — but Sweden has the most.

Q19 – B) Amazon River. Amazon is the longest river in South America (about 6,400 km). Paraná is second, Orinoco is third, São Francisco is fourth.

Q20 – B) Sahara Desert. Sahara is the largest hot desert (about 9.2 million sq km). Gobi is cold desert, Arabian is second-largest hot, Kalahari is smaller.

Weak-Section Review

Which questions did you miss? Write the 3 you missed, the correct answers, and one line for each explaining why. World Geography: revise Nile (longest in Africa), Australia (smallest continent), Gobi (largest in Asia), Pacific (deepest ocean), Brazil (largest rainforest), Angel Falls (highest waterfall), Caspian Sea (largest lake), Indonesia (largest island country), Thames (London), Lambert Glacier (largest glacier), Japan (Rising Sun), Atlantic (second-largest ocean), Andes (largest range), Great Barrier Reef (largest reef), Sweden (most islands), Amazon (longest in South America), Sahara (largest hot desert). Environment: revise CO2 (global warming), ozone layer (UV protection), plants (oxygen source). Re-attempt this set in 2 days.

These are original practice questions written for csspastpapers.pk. They are not FPSC official questions, and this site is not affiliated with FPSC.

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