Geography Environment MCQs Set 4

This is a 20-question MCQ set on Geography & Environment (Set 4) — oceans, landforms, continents, 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.

Geography Environment MCQs Set 4 – 20 Explained

Questions (Q1–Q20):

Q1. Which is the second largest ocean in the world? A) Indian B) Atlantic C) Pacific D) Arctic

Q2. Which is the longest mountain range in the world? A) Himalayas B) Andes C) Rockies D) Alps

Q3. Which is the second largest island in the world? A) Borneo B) New Guinea C) Madagascar D) Sumatra

Q4. Which is the deepest lake in the world? A) Baikal B) Superior C) Caspian D) Victoria

Q5. Which is the largest lake in the world? A) Superior B) Baikal C) Caspian Sea D) Victoria

Q6. Which continent is known as the Dark Continent? A) Asia B) Africa C) Australia D) South America

Q7. Which is the hottest continent in the world? A) Asia B) Africa C) Australia D) South America

Q8. Which is the coldest continent in the world? A) Antarctica B) Europe C) North America D) Asia

Q9. Which country has the most natural lakes in the world? A) Russia B) USA C) Canada D) Brazil

Q10. Which is the largest rainforest in the world? A) Congo B) Amazon C) Daintree D) Valdivian

Q11. Which gas is most abundant in the Earth’s atmosphere? A) Oxygen B) Nitrogen C) Carbon dioxide D) Hydrogen

Q12. Which gas is the main cause of global warming? A) Oxygen B) Nitrogen C) Carbon dioxide D) Helium

Q13. Which layer protects the Earth from ultraviolet rays? A) Troposphere B) Ozone layer C) Stratosphere D) Ionosphere

Q14. Which is the main cause of acid rain? A) Carbon monoxide B) Sulphur dioxide C) Nitrogen D) Ozone

Q15. Which of the following is a renewable resource? A) Coal B) Solar energy C) Natural gas D) Petroleum

Q16. Which of the following is a non-renewable resource? A) Wind energy B) Coal C) Solar energy D) Hydropower

Q17. Which is the largest desert in Asia? A) Arabian B) Gobi C) Thar D) Karakum

Q18. Which river is the longest in Asia? A) Ganges B) Yangtze C) Indus D) Mekong

Q19. Which is the highest waterfall in the world? A) Niagara Falls B) Angel Falls C) Victoria Falls D) Iguazu Falls

Q20. Which is the largest delta in the world? A) Nile Delta B) Ganges-Brahmaputra Delta C) Mississippi Delta D) Danube Delta

Answer Key + Explained Answers:

Q1 – B) Atlantic. Atlantic is the second largest ocean. Indian is third, Pacific is first, Arctic is smallest.

Q2 – B) Andes. Andes is the longest mountain range. Himalayas is highest, Rockies is long, Alps is in Europe.

Q3 – B) New Guinea. New Guinea is the second largest island. Borneo is third, Madagascar is fourth, Sumatra is sixth.

Q4 – A) Baikal. Baikal is the deepest lake. Superior is large, Caspian is largest lake, Victoria is large.

Q5 – C) Caspian Sea. Caspian Sea is the largest lake. Superior is largest freshwater by area, Baikal is deepest, Victoria is large.

Q6 – B) Africa. Africa is known as the Dark Continent. Asia is largest, Australia is smallest, South America is fourth.

Q7 – B) Africa. Africa is the hottest continent. Asia is diverse, Australia is hot but second, South America is warm.

Q8 – A) Antarctica. Antarctica is the coldest continent. Europe is temperate, North America is cold in parts, Asia is diverse.

Q9 – C) Canada. Canada has the most natural lakes. Russia has many, USA has many, Brazil has many — but Canada has most.

Q10 – B) Amazon. Amazon is the largest rainforest. Congo is second, Daintree is in Australia, Valdivian is in Chile.

Q11 – B) Nitrogen. Nitrogen is most abundant (about 78%). Oxygen is about 21%, carbon dioxide is trace, hydrogen is trace.

Q12 – C) Carbon dioxide. Carbon dioxide is the main cause of global warming. Oxygen is breathed, nitrogen is inert, helium is inert.

Q13 – B) Ozone layer. Ozone layer protects from ultraviolet rays. Troposphere is lowest layer, stratosphere contains ozone, ionosphere is upper.

Q14 – B) Sulphur dioxide. Sulphur dioxide is the main cause of acid rain. Carbon monoxide is toxic, nitrogen is inert, ozone is in upper atmosphere.

Q15 – B) Solar energy. Solar energy is renewable. Coal is fossil, natural gas is fossil, petroleum is fossil.

Q16 – B) Coal. Coal is non-renewable. Wind, solar, hydropower are renewable.

Q17 – B) Gobi. Gobi is the largest desert in Asia. Arabian is second, Thar is in India/Pakistan, Karakum is in Turkmenistan.

Q18 – B) Yangtze. Yangtze is the longest river in Asia. Ganges is in India, Indus is in Pakistan, Mekong is in Southeast Asia.

Q19 – B) Angel Falls. Angel Falls is the highest waterfall. Niagara is famous, Victoria is large, Iguazu is large — but Angel is highest.

Q20 – B) Ganges-Brahmaputra Delta. Ganges-Brahmaputra Delta (Bengal Delta) is the largest delta. Nile is large, Mississippi is large, Danube is large — but Bengal is largest.

Weak-Section Review:

Which questions did you miss? Write the 3 you missed, the correct answers, and one line for each explaining why.

Geography & Environment: revise Atlantic (second largest ocean), Andes (longest range), New Guinea (second largest island), Baikal (deepest lake), Caspian Sea (largest lake), Africa (Dark Continent, hottest continent), Antarctica (coldest continent), Canada (most lakes), Amazon (largest rainforest), Nitrogen (most abundant), Carbon dioxide (global warming), Ozone layer (UV protection), Sulphur dioxide (acid rain), Solar energy (renewable), Coal (non-renewable), Gobi (largest Asian desert), Yangtze (longest Asian river), Angel Falls (highest waterfall), Ganges-Brahmaputra Delta (largest delta). 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.

Current Affairs MCQs – Geography & Environment Set 4 (20 Explained)