Q151. Identify the odd one out among the following natural geographical features based on their primary formational processes.
World Geography: RAS Prelims MCQs
553 RAS Prelims practice MCQs on world geography are on this page, in 7 chapters. They cover physical landforms, major rivers and lakes, natural vegetation and biomes, world agriculture, industrial regions, the transport network and the main environmental issues: desertification, deforestation, climate change and ozone depletion. Each question has an answer and an explanation, in the formats the exam uses.
Practice questions based on the RPSC RAS Prelims syllabus. They follow the exam pattern but are not past-paper questions.
Showing 151–160 of 553 questions
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Q152. Consider the following statements about the Volga River:
I. It originates in the Valdai Hills of Russia.
II. It is the longest river entirely within the European continent.
III. It freezes during the winter over most of its length.
IV. It flows heavily through the industrial heartland of Germany.
Which of the above statement(s) is/are incorrect?
I. It originates in the Valdai Hills of Russia.
II. It is the longest river entirely within the European continent.
III. It freezes during the winter over most of its length.
IV. It flows heavily through the industrial heartland of Germany.
Which of the above statement(s) is/are incorrect?
Explanation
The Volga is a legendary river that originates in the Valdai Hills and is the longest river in Europe. It flows entirely within Russia and is a central part of the nation’s identity and economy. While it does freeze during the winter months, it does not flow through Germany; it traverses the Russian heartland before emptying into the Caspian Sea.
Q153. Which feature uniquely highlights the historical importance of the Nile River in antiquity?
Explanation
The historical significance of the Nile River is deeply tied to the development of ancient Egyptian civilization. Each year, the river would overflow its banks, depositing a layer of rich, fertile silt across the surrounding floodplains. This natural irrigation and fertilization cycle allowed for productive agriculture in an otherwise arid region, providing the economic foundation for one of history’s greatest empires.
Q154. Arrange the major Siberian rivers from West to East:
I. Yenisei
II. Ob
III. Lena
Select the correct sequence:
I. Yenisei
II. Ob
III. Lena
Select the correct sequence:
Explanation
The three great rivers of Siberia are distributed across the vast northern territory of Russia. When moving from west to east, the sequence begins with the Ob River, followed by the Yenisei River in the central region. The Lena River is the easternmost of the three. All three rivers flow predominantly northward to discharge their waters into the Arctic Ocean.
Q155. Match List-I (Specific River) with List-II (Key Identifying Feature) and select the correct option:
| Specific River | Key Identifying Feature |
|---|---|
| A. Mississippi | i. Largest tropical rainforest basin |
| B. Nile | ii. Bird’s foot delta |
| C. Amazon | iii. High loess sediment content |
| D. Huang He | iv. Longest river in the world |
Explanation
Major rivers are often identified by unique geographical or ecological traits. The Mississippi River is characterized by its bird’s-foot delta. The Nile is globally recognized as the longest river. The Amazon River basin contains the world’s largest tropical rainforest, known for its biodiversity. The Huang He, or Yellow River, is famous for the high loess sediment content that colors its waters.
Q156. Which of the following prominent African lakes is generally NOT considered a physical part of the Great Rift Valley system due to its shallow, saucer-like depression?
Explanation
While many African Great Lakes are situated directly within the deep, narrow trenches of the East African Rift Valley, Lake Victoria has a different origin. It occupies a wide, shallow, and saucer-shaped tectonic depression located between the Eastern and Western Rift branches. Because of this, it lacks the extreme depth and steep walls characteristic of true rift valley lakes.
Q157. Read the following statements regarding the Amazon River basin and select the correct option:
Statement I: The vast equatorial rainforest occupying the Amazon basin is locally referred to as the Selvas.
Statement II: The Amazon basin consistently experiences distinct, prolonged dry seasons causing the river to drastically shrink for half the year.
Which of the following is correct?
Statement I: The vast equatorial rainforest occupying the Amazon basin is locally referred to as the Selvas.
Statement II: The Amazon basin consistently experiences distinct, prolonged dry seasons causing the river to drastically shrink for half the year.
Which of the following is correct?
Explanation
The Amazon River basin is dominated by the world’s largest tropical rainforest, which is locally known as the Selvas. This region is located along the Equator and is characterized by high temperatures and significant rainfall throughout the year. Contrary to having a prolonged dry season, the basin experiences high precipitation consistently, maintaining the river’s massive flow and the forest’s lush density.
Q158. Consider the following statements regarding the global distribution of lakes:
I. The majority of the world’s large freshwater lakes are situated in high northern latitudes formed by past glaciation.
II. Saltwater lakes are almost exclusively found in hot, arid, endorheic basins where evaporation exceeds precipitation.
III. The Caspian Sea contains the vast majority of the world’s saline lake water volume.
IV. Freshwater lakes contain a higher volume of the Earth’s total liquid freshwater than all flowing rivers combined.
V. Volcanic crater lakes account for more than half of the total global lake surface area.
Which of the above statement(s) is/are correct?
I. The majority of the world’s large freshwater lakes are situated in high northern latitudes formed by past glaciation.
II. Saltwater lakes are almost exclusively found in hot, arid, endorheic basins where evaporation exceeds precipitation.
III. The Caspian Sea contains the vast majority of the world’s saline lake water volume.
IV. Freshwater lakes contain a higher volume of the Earth’s total liquid freshwater than all flowing rivers combined.
V. Volcanic crater lakes account for more than half of the total global lake surface area.
Which of the above statement(s) is/are correct?
Explanation
The distribution of global lakes is shaped by climate and geological history. Most large lakes are found in northern latitudes due to past glaciation. Saltwater lakes typically occur in arid, endorheic basins. The Caspian Sea holds a massive share of the world’s saline water. While freshwater lakes hold significant volumes, volcanic crater lakes comprise only a small fraction of total area.
Q159. The massive, elongated estuary at the mouth of the Ob River, recognized as the world’s longest estuary, is known as:
Explanation
The Ob River in Russia is notable for its unique outfall into the Arctic Ocean. It forms the Gulf of Ob, which is recognized as the longest estuary in the world. This massive, elongated body of water serves as a transition zone between the freshwater of the river and the saline water of the Kara Sea, stretching for several hundred miles.
Q160. Identify the correct statement regarding the ultimate outfall of the Danube River.
Explanation
The Danube River is the second-longest river in Europe and serves as a major artery for the continent. It originates in the Black Forest of Germany and flows eastward through Central and Eastern Europe. Upon reaching the coast of Romania and Ukraine, the river forms an extensive delta before ultimately discharging its waters into the Black Sea.Answer key for these questions
| Q | Correct answer |
|---|---|
| 151 | (d) Barchan Dunes |
| 152 | (b) IV only |
| 153 | (c) Fertile silt from annual floods supported ancient farming |
| 154 | (b) II - I - III |
| 155 | (d) A-ii, B-iv, C-i, D-iii |
| 156 | (b) Lake Victoria |
| 157 | (c) Statement I is correct, but Statement II is incorrect. |
| 158 | (a) I, II, III, and IV |
| 159 | (a) The Gulf of Ob |
| 160 | (b) It forms a delta and empties into the Black Sea |
Key facts from World Geography
- The RPSC syllabus for world geography lists mountains, plateaus, plains and deserts, major rivers and lakes, natural vegetation, agriculture, industrial regions, transport and environmental issues.
- Questions ask for the location of a feature: where a range lies, where a river ends, which country has an industrial region.
- Statement and sequence questions are common, for example the order of mountain ranges or of vegetation layers.
- Environmental issues are asked through treaties and dates, such as the Montreal Protocol, the IPCC and the Paris Agreement.
- Indian and Rajasthan geography are on their own pages, each with its own chapters.
Frequently asked questions
How many RAS Prelims practice MCQs are there on World Geography?
This page has 553 practice MCQs on World Geography. Each has the correct answer, and most have an explanation.
Which chapters does the world geography set cover?
Seven chapters: physical landforms (mountains, plateaus, plains and deserts), major rivers and lakes, natural vegetation and biomes, world agriculture, major industrial regions, the world transport network, and environmental issues including desertification, deforestation, climate change and ozone depletion.
Is world geography part of the RAS Prelims syllabus?
Yes. The RPSC syllabus has a Geography of World and India section that lists physical aspects, rivers and lakes, natural vegetation, agriculture, industrial regions, transport and environmental issues for the world, followed by India and Rajasthan.
How can I revise world geography quickly?
Use an atlas alongside the questions. Attempt each chapter, read the explanation for every miss and mark the place on the map. Make short lists of ranges, rivers and industrial regions with their countries, and revise them over several days.