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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.

Hard · Level 3 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Soil altitude temperature or human pressure may differ
  2. Rainfall has no relation with vegetation
  3. All plants grow the same everywhere
  4. Vegetation changes only by language
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  1. Because temperature has no relation with plants
  2. Because rainfall humidity and photoperiod also affect plants
  3. Because soil always remains same
  4. Because vegetation depends only on rocks
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  1. They stop sunlight
  2. They make soil saline
  3. They help reach deeper moisture
  4. They make temperature zero
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  1. Dense forests will form in every case
  2. Rainfall will have no use at all
  3. All plants will become mangroves
  4. Plant growth may be limited or specialised
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  1. By changing sunlight and moisture received
  2. By changing language
  3. By changing currency
  4. By reducing river length
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  1. Both are always the same
  2. Water availability is useful water while waterlogging can harm roots
  3. Waterlogging always makes plants grow fast
  4. Water availability has no relation with roots
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  1. Snowy slope
  2. Dry desert
  3. Waterlogged marshy soil with low oxygen
  4. Very high alpine land
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  1. Photosynthesis will increase
  2. Forests will return immediately
  3. Soil will automatically become deep
  4. Runoff and soil erosion will increase
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  1. Young plants are eaten before they grow
  2. Rainfall immediately doubles
  3. Soil always becomes deep
  4. Grass becomes trees
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  1. Because they grow only in saline water
  2. Because they shed leaves in dry season to save water
  3. Because they are found only in Himalayan snow
  4. Because they need waterlogging all year
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  1. Human language effect
  2. Only increase in soil salinity
  3. Decrease in temperature and growing period with altitude
  4. Direct effect of road construction
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  1. Because snow remains there all the time
  2. Because rainfall never occurs there
  3. Because only saline water exists there
  4. Because sufficient moisture and warmth maintain leaves continuously
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  1. Photosynthesis
  2. Currency exchange
  3. River erosion
  4. Rock formation
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  1. It decides plant language
  2. It affects water holding and drainage
  3. It changes direction of the sun
  4. It always stops rainfall
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  1. Vegetation will immediately become dense
  2. Rainfall will always increase
  3. Vegetation may decline due to lack of roots support and nutrients
  4. Mangroves will grow on mountains
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  1. Wildlife does not need vegetation
  2. Vegetation is only for humans
  3. Wildlife does not live in soil
  4. Vegetation provides food shelter and breeding sites
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  1. Small leaves and thick bark
  2. Very broad soft leaves
  3. Rootless stem
  4. Year round waterlogging tolerance
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  1. When forest has never been disturbed
  2. When original forest has been affected by cutting or fire
  3. When the sea has frozen
  4. When soil has completely disappeared
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  1. Linguistic change
  2. Market expansion
  3. Change in suitable climatic range
  4. Railway construction
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  1. Local cold will always increase
  2. Sunlight will end
  3. Rain will occur every day
  4. Heat may increase due to reduced shade and transpiration
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  1. High rainfall warm temperature and sufficient moisture
  2. Low rainfall high heat and sandy soil
  3. Permanent frost and short growing season
  4. Saline marsh and tidal water
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  1. High moisture and year round rain
  2. Low rainfall high temperature and water scarcity
  3. Cold alpine climate
  4. Marshy saline coast
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  1. Cold high mountain slope
  2. Dry sandy desert
  3. Saline water marshy soil and coastal area
  4. Deep glacial valley
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  1. Warm coastal marsh
  2. High rainfall evergreen plain
  3. Dry hot desert
  4. High mountain cold and short growing season
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  1. Bank erosion may increase
  2. River will freeze
  3. River course will always remain straight
  4. Mangroves will grow on mountains

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