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Class 9
Geography
Natural Vegetation and Wildlife
Factors Affecting Vegetation

Geography

Factors Affecting Vegetation

वनस्पति को प्रभावित करने वाले कारक

In this Class 9 Geography topic from “Natural Vegetation and Wildlife,” students learn why different regions support different kinds of plants. They examine how temperature, rainfall, sunlight, soil, relief, altitude, and slope influence the growth and distribution of natural vegetation. The topic also helps them connect vegetation patterns with climate and landforms, and understand how human activities can alter plant cover. These ideas build a clear foundation for reading India’s varied landscapes and vegetation regions.

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Up to 20 questions from this page. Select your focus, then start.

20 questions

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1. Relief affects vegetation not only through altitude but also through what?Expert · Level 58 · relief,slope,drainage,land use

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Slope, drainage and possibility of land use
Language and currency
Sports and food
State and capital

2. If a question asks to link vegetation and wildlife, what is the most correct relation?Expert · Level 58 · vegetation,wildlife,habitat,food

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Vegetation forms the base of habitat and food for wildlife
Vegetation is only decoration
Wildlife does not need vegetation
Vegetation only measures temperature

3. In which condition will plants try to obtain water by developing deep roots?Expert · Level 58 · deep roots,dry regions,water adaptation

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In high rainfall marsh
In dry and low rainfall area
In permanently waterlogged delta
On snowy glacier

4. If an area has low latitude but very high altitude, what effect on temperature and vegetation is possible?Expert · Level 58 · latitude, altitude, temperature, mountain vegetation, natural vegetation, climate factors

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Temperature may fall due to altitude and mountain vegetation may occur
Low latitude will always keep temperatures high and tropical evergreen forests will occur
Altitude does not affect temperature; only latitude determines vegetation
Temperature rises at high altitude, so only desert vegetation occurs

5. Which option correctly separates natural and human factors?Expert · Level 58 · natural factors,human factors,deforestation

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Rainfall is a natural factor and deforestation is a human factor
Language is natural and temperature is human factor
Deforestation is natural and soil is human factor
Road is natural and rainfall is human factor

6. In which condition can regrowth of natural vegetation be difficult?Expert · Level 58 · soil erosion,regrowth,rainfall variability

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When soil is eroded and rainfall is irregular
When soil is deep and moisture is sufficient
When temperature and rainfall are favourable
When human pressure is low

7. In which question will the effect of photoperiod on vegetation be asked most clearly?Expert · Level 58 · photoperiod,day length,flowering

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How day length changes flowering of plants
How river width affects road
How soil colour changes language
How state boundary creates market

8. If an area is very warm and very humid, conditions will be most favourable for which vegetation?Expert · Level 58 · warm humid climate,tropical evergreen,dense vegetation

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Dense tropical evergreen vegetation
Cold desert moss
Desert thorny scrub
Alpine grass

9. If saline water and tides are present in a river delta, what quality do plants need?Expert · Level 58 · salt tolerance,delta,mangroves

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Salt tolerance and ability to tolerate marshy conditions
Only tolerating extreme dryness
Living always in snow
Making food without light

10. In which condition can plant roots remain weak even with high rainfall?Expert · Level 58 · thin soil,erosion,root support

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When soil is very thin or eroded
When soil is deep and fertile
When slope is stable and soil is moist
When both water and nutrients are sufficient

11. If vegetation density increases in an area, which factor is most likely supportive?Expert · Level 58 · vegetation density,rainfall,soil

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Adequate rainfall and favourable soil
Permanent water shortage
Very saline dry soil
Continuous deforestation

12. Which example shows that relief affects vegetation also through human land use?Expert · Level 58 · relief,land use,plains slopes

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Plains become farms while forests may remain on difficult slopes
Only cities form on every mountain
Only natural forest remains in every plain
There is no relation between slope and farming

13. Which statement has the most scientific view of vegetation factors?Expert · Level 58 · scientific approach,combined factors,vegetation

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Vegetation is the result of interaction of many factors
Vegetation forms only by plant names
Soil and climate have no effect on vegetation
Vegetation of every region is necessarily same

14. If soil erosion starts on a slope after deforestation, what will be the effect on future vegetation?Expert · Level 58 · deforestation,soil erosion,regrowth

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Growth of new plants may become difficult
Dense forest will grow immediately
Soil fertility will always increase
Need for water will end

15. Which option correctly separates climatic factor and relief factor?Expert · Level 58 · climatic factor,relief factor,rainfall altitude

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Rainfall is climatic factor and altitude is relief factor
Language is climatic and market is relief factor
Road is climatic and food is relief factor
Capital is climatic and currency is relief factor

16. If plants in a dry region have waxy surface, thorns and deep roots, this is a response to which environmental pressure?Expert · Level 58 · xerophytes,water shortage,plant adaptation

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Water shortage and risk of transpiration
Permanent waterlogging
Only excess salt and tides
Lack of light in dense shade

17. In which situation will reading vegetation map and rainfall map together be most useful?Expert · Level 58 · natural vegetation,rainfall distribution,thematic maps,vegetation types,climate factors,geography maps

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To understand the relationship between vegetation types and rainfall distribution
To identify earthquake-prone areas and active faults
To compare population density and the expansion of urban settlements
To locate mineral deposits and industrial centres

18. If a place has very high temperature but very low rainfall, which conclusion is most correct?Expert · Level 58 · hot dry climate,thorny vegetation,water availability

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Due to low water availability thorny or sparse vegetation is possible
Dense evergreen forests are certain
Mangroves are certain
Alpine forests are certain

19. If day length and temperature both change seasonally in an area, what effect is possible on plants?Expert · Level 58 · photoperiod,temperature,flowering

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Timing of growth and flowering can change
Plants will no longer need soil
All plants will become mangroves
Effect of rainfall will end

20. If soil is fertile in an area but natural vegetation is low, which reason is most likely?Expert · Level 58 · fertile soil,agriculture,human use

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Land is being used for farming and settlement
Fertile soil stops plants
Rainfall is always zero
Photoperiod is absent

Question 1ExpertLevel 58

Relief affects vegetation not only through altitude but also through what?

ASlope, drainage and possibility of land useBLanguage and currencyCSports and foodDState and capital

Correct answer: A

Slope and drainage affect roots and water availability. Exam tip: treat relief as a broad factor.

Factors Affecting Vegetation

Quiz this set

Relief affects vegetation not only through altitude but also through what?

If a question asks to link vegetation and wildlife, what is the most correct relation?

In which condition will plants try to obtain water by developing deep roots?

If an area has low latitude but very high altitude, what effect on temperature and vegetation is possible?

Which option correctly separates natural and human factors?

In which condition can regrowth of natural vegetation be difficult?

In which question will the effect of photoperiod on vegetation be asked most clearly?

If an area is very warm and very humid, conditions will be most favourable for which vegetation?

If saline water and tides are present in a river delta, what quality do plants need?

In which condition can plant roots remain weak even with high rainfall?

If vegetation density increases in an area, which factor is most likely supportive?

Which example shows that relief affects vegetation also through human land use?

Which statement has the most scientific view of vegetation factors?

If soil erosion starts on a slope after deforestation, what will be the effect on future vegetation?

Which option correctly separates climatic factor and relief factor?

If plants in a dry region have waxy surface, thorns and deep roots, this is a response to which environmental pressure?

In which situation will reading vegetation map and rainfall map together be most useful?

If a place has very high temperature but very low rainfall, which conclusion is most correct?

If day length and temperature both change seasonally in an area, what effect is possible on plants?

If soil is fertile in an area but natural vegetation is low, which reason is most likely?

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