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Subjects

Geography

Factors Affecting Vegetation

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.

Expert · Level 5 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Plant growth will depend on timing of water availability
  2. Vegetation will always remain same
  3. Soil will have no importance
  4. Only mangroves will develop
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  1. When rainfall and soil are similar but one area is waterlogged
  2. When all factors are exactly same
  3. When photoperiod ends
  4. When altitude is zero
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  1. Same forest will remain at all heights
  2. Vegetation belts will form according to altitude
  3. Only mangroves will be everywhere
  4. Vegetation will always increase upward
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  1. Every plant will grow equally
  2. Only excess water will decide vegetation
  3. Salt and waterlogging tolerant vegetation will survive better
  4. Vegetation will be impossible
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  1. Excess waterlogging
  2. Very low sunlight
  3. Only saline soil
  4. Water shortage and high transpiration
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  1. When human land use has converted the area into farms or cities
  2. When rainfall occurs naturally
  3. When soil has nutrients
  4. When temperature is favourable
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  1. Total rainfall shows amount while regularity shows timing of water supply
  2. Both mean soil depth
  3. Regularity has no relation with plants
  4. Amount is only for animals
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  1. New plants may be damaged before growing
  2. Grazing always makes forests dense
  3. Deforestation always deepens soil
  4. Regeneration has no relation with human impact
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  1. When temperature is favourable, but the soil is very shallow and nutrient-poor
  2. When temperature is low, but the soil is deep and highly fertile
  3. When rainfall is adequate and soil moisture remains available for a long time
  4. When human activities are low and natural vegetation is protected
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  1. Steepness of slope
  2. Photoperiod
  3. Soil salinity
  4. Drainage
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  1. Low temperature can slow biological processes
  2. Water availability always stops growth
  3. Photoperiod is always zero in cold
  4. Soil has no effect
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  1. Where water and soil are limited for trees but enough for smaller vegetation
  2. Where rainfall is very high and soil is deep
  3. Where there is no human pressure
  4. Where temperature and moisture are ideal
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  1. Primary food base can weaken
  2. All animals will get more food
  3. Predators will become plants
  4. Food chain has no relation with vegetation
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  1. Survival of mangroves in saline marshy area
  2. Only snowy moss in fertile plains
  3. Dense rainforest in dry desert
  4. Seaweed in high Himalaya
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  1. Slope stabilisation and soil conservation
  2. Increasing deforestation
  3. Making grazing uncontrolled
  4. Blocking drainage
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  1. Altitude-based climatic difference is working
  2. Political boundary is changing plants
  3. Roads are creating vegetation
  4. Language is changing plant roots
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  1. Dense and diverse vegetation
  2. Complete absence of vegetation
  3. Only dry thorny scrub
  4. Permanent snowy moss
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  1. Human land use can replace natural dry vegetation
  2. Low rainfall will always form mangroves
  3. Irrigation has no relation with land use
  4. Natural vegetation will become dense automatically
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  1. A hot, dry region with low rainfall and high temperature
  2. A tropical rainforest with heavy rainfall and consistently high humidity
  3. A shady and humid area with adequate water availability
  4. A moist, fertile region with a temperate climate
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  1. Low rainfall and sparse vegetation
  2. Saline marshy soil and mangroves
  3. Increasing altitude and falling temperature
  4. Deforestation and increasing vegetation density
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  1. Erosion reduces nutrients and root support
  2. Equal rainfall makes same vegetation compulsory everywhere
  3. Erosion gives more nutrients to plants
  4. Soil has no relation with vegetation
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  1. Saline water, marshy soil, tides and coastal location occur together
  2. Only high cold mountain exists
  3. Very low rainfall desert exists
  4. Permanent glacier exists
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  1. Temperature and photoperiod
  2. Language and market
  3. Road and bridge
  4. State boundary and currency
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  1. Challenge of root respiration and salt tolerance
  2. Only extreme drought
  3. Always complete absence of light
  4. Very high increase in altitude
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  1. When food and habitat decrease
  2. When vegetation becomes dense
  3. When water and shelter increase
  4. When human interference ends

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