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Natural Vegetation MCQ — 51 Practice Questions with Answers

Practice 51 Natural Vegetation multiple-choice questions with detailed answers and explanations. Ideal for RAS/RPSC exam preparation.

51 Questions World Geography

Practice Questions

Q1. The Tundra biome is found in:

A Temperate grasslands of Europe
B Deserts of Africa
C Tropical forests of South America
D Arctic regions of North America, Europe, and Asia, with permafrost Correct

Explanation

Tundra is found in Arctic regions (above 60-70°N latitude) in Canada, Alaska, Greenland, Scandinavia, and Siberia, and at high altitudes (Alpine Tundra). Characterized by permafrost, very low temperatures, short growing season, and no trees. Vegetation: lichens, mosses, dwarf shrubs, grasses. Animals: caribou, musk oxen, Arctic fox, polar bears, snowy owl. It is a carbon sink — permafrost melting due to climate change is a major concern.

Q2. Which tree species is commercially known as 'Green Gold' and is the primary source of mahogany timber exported from Central America?

A Swietenia macrophylla (Big-leaf mahogany) Correct
B Tectona grandis (Teak)
C Eucalyptus globulus (Blue gum)
D Dalbergia latifolia (Indian rosewood)

Explanation

Swietenia macrophylla (Big-leaf mahogany) is called 'Green Gold' due to its high commercial value. It is native to tropical forests of Central and South America (Amazon, Belize, Mexico). Listed as Vulnerable on the IUCN Red List due to heavy overexploitation. Listed under CITES Appendix II for international trade regulation.

Q3. Which of the following pairs of tree species and their primary commercial use is INCORRECTLY matched?

A Teak (Tectona grandis) — High-quality furniture, shipbuilding
B Eucalyptus (Eucalyptus globulus) — Paper pulp, essential oils, biofuel
C Birch (Betula spp.) — Plywood, paper, medicinal bark (birch tar)
D Conifer (Pinus sylvestris — Scots Pine) — Turpentine, resin, rubber production Correct

Explanation

Pinus sylvestris (Scots Pine) is used for timber, turpentine and resin — but NOT for rubber production. Natural rubber comes from Hevea brasiliensis (rubber tree), native to the Amazon and cultivated in Southeast Asia (Malaysia, Thailand, Indonesia). Pines produce resin/turpentine (oleoresin). Rubber is an entirely different product from a different tree family (Euphorbiaceae). This is the incorrectly matched pair.

Q4. Which of the following statements about tropical deciduous forests (monsoon forests) is/are CORRECT? 1. Teak (Tectona grandis) is the most commercially valuable tree in moist deciduous forests of South and Southeast Asia. 2. Tropical deciduous forests shed their leaves during the hot dry season to conserve water. 3. They receive annual rainfall between 70 cm and 200 cm. 4. Sal (Shorea robusta) is found exclusively in dry deciduous forests, never in moist deciduous zones.

A 1, 2 and 3 only Correct
B 1, 2, 3 and 4
C 2 and 3 only
D 1 and 4 only

Explanation

Statements 1, 2, and 3 are correct. Teak (Tectona grandis) is the premier commercial timber of moist tropical deciduous forests. Deciduous trees shed leaves in the dry/hot season to minimize water loss. These forests receive 70–200 cm annual rainfall. Statement 4 is INCORRECT: Sal (Shorea robusta) occurs in BOTH moist and dry deciduous zones.

Q5. Arrange the following biomes in INCREASING order of their annual net primary productivity (NPP) per unit area (lowest to highest):

A Tundra < Taiga < Temperate Grassland < Tropical Rainforest Correct
B Taiga < Tundra < Tropical Rainforest < Temperate Grassland
C Tundra < Temperate Grassland < Taiga < Tropical Rainforest
D Temperate Grassland < Tundra < Taiga < Tropical Rainforest

Explanation

Net Primary Productivity (NPP) increasing order: Tundra (~1-2 t C/ha/yr, frozen soils, short growing season) < Taiga (~3-5 t C/ha/yr, cold winters limit growth) < Temperate Grassland (~5-7 t C/ha/yr, seasonal but productive) < Tropical Rainforest (highest, ~10-20 t C/ha/yr, year-round warmth and moisture). Tropical rainforests produce the most biomass on Earth.

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Q6. Match List-I (Vegetation/Biome) with List-II (Characteristic Adaptation) and select the CORRECT answer: List-I — List-II A. Desert Xerophytes — 1. CAM (Crassulacean Acid Metabolism) photosynthesis B. Mangrove Trees — 2. Buttress roots for structural support C. Tropical Rainforest Trees — 3. Sclerophyllous (hard, leathery) leaves D. Mediterranean Shrubs — 4. Pneumatophores for gas exchange

A A-1, B-4, C-2, D-3
B A-1, B-2, C-4, D-3
C A-3, B-4, C-1, D-2
D A-2, B-3, C-4, D-1
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Q7. The Congo (Zaire) River Basin contains the world's second-largest:

A Tundra
B Grassland
C Desert
D Tropical rainforest (after Amazon)
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Q8. Which of the following is the MOST ACCURATE statement about deforestation in the Amazon Basin?

A Industrial logging for timber export is the single largest direct driver of Amazon deforestation.
B Agricultural expansion (cattle ranching and soy cultivation) is the dominant driver of Amazon deforestation, accounting for the vast majority of forest loss.
C The Amazon rainforest has gained net forest cover over the past two decades due to reforestation programs.
D Amazon deforestation has no significant impact on global carbon emissions as the forest regrows rapidly after clearing.
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Q9. The Mediterranean climate is characterized by:

A Hot wet summers and cold dry winters
B Very cold throughout the year
C Uniform temperature and rainfall
D Dry hot summers and mild wet winters
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Q10. Which of the following INCORRECTLY describes an adaptation of desert vegetation (xerophytes)?

A Thick, waxy cuticle on leaves/stems to reduce transpiration
B Leaves modified into spines to reduce surface area and deter herbivores
C Extremely shallow root systems confined to the top 2 cm of soil to maximize dew absorption
D Succulents store water in fleshy stems or leaves (e.g., cacti, aloe)
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Q11. Arrange the following vegetation zones in the correct order of their occurrence during ALTITUDINAL ZONATION on a tropical mountain, from base to summit:

A Tropical Rainforest → Tropical Deciduous → Temperate Broadleaf → Coniferous/Alpine → Alpine Meadow/Tundra → Permanent Snow
B Tropical Deciduous → Tropical Rainforest → Coniferous → Temperate Broadleaf → Alpine Meadow → Permanent Snow
C Tropical Rainforest → Coniferous → Temperate Broadleaf → Tropical Deciduous → Alpine Meadow → Permanent Snow
D Tropical Rainforest → Tropical Deciduous → Coniferous → Temperate Broadleaf → Alpine Meadow → Permanent Snow
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Q12. Which of the following statements about the REDD+ programme is/are CORRECT? 1. REDD+ stands for Reducing Emissions from Deforestation and Forest Degradation, with the '+' referring to conservation of forest carbon stocks and sustainable forest management. 2. REDD+ is exclusively administered by the IUCN and does not fall under the UNFCCC framework. 3. Developing countries can earn results-based payments for verified reductions in deforestation under REDD+. 4. REDD+ operates on the principle of Payment for Ecosystem Services (PES).

A 1, 3 and 4 only
B 1, 2, 3 and 4
C 2 and 3 only
D 1 and 3 only
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Q13. The 'Pampas' grasslands are found in:

A North America
B South America
C Africa
D Australia
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Q14. ASSERTION (A): Tropical rainforest trees develop buttress roots — large triangular root flanges extending outward from the base of the trunk. REASON (R): The nutrient-rich, deep soils of tropical rainforests cannot support the weight of tall trees through conventional root systems alone, necessitating additional structural support. Select the correct answer using the codes given below:

A Both A and R are true, and R is the correct explanation of A
B Both A and R are true, but R is NOT the correct explanation of A
C A is true, but R is false
D A is false, but R is true
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Q15. The 'Savanna' grasslands of Africa are also known as:

A Pampas
B Prairies
C Steppes
D Tropical Grasslands/Bushveld

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Frequently Asked Questions

How many Natural Vegetation MCQ questions are available?
There are 51 Natural Vegetation practice MCQs available on Aspirant Academy, with detailed answers and explanations for each question.
Are answers and explanations provided for Natural Vegetation MCQs?
Yes, every Natural Vegetation question comes with the correct answer and a detailed explanation to help you understand the underlying concept.
How is Natural Vegetation relevant to the RAS/RPSC exam?
Natural Vegetation falls under the World Geography section of the RAS/RPSC syllabus. It is a frequently tested area and regular practice with these MCQs will strengthen your preparation.
Can I practice Natural Vegetation questions in Hindi?
Yes, Aspirant Academy offers bilingual support. You can practice Natural Vegetation MCQs in both English and Hindi, including questions, options, and explanations.

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