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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 1 · 25 questions

TOPIC PRACTICE

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  1. Because climate relief water availability and human activities also affect it
  2. Because soil has no relation with vegetation
  3. Because vegetation is decided only by language
  4. Because rainfall is equal in all areas
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  1. Because high rainfall always destroys vegetation
  2. Because poor drainage or thin soil can damage roots
  3. Because sunlight has no relation with plants
  4. Because temperature always remains same
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  1. To stop photosynthesis
  2. To separate roots from soil
  3. To reduce water loss
  4. To increase rainfall
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  1. Human language change
  2. Road density change
  3. Market price change
  4. Change in temperature moisture and growing period
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  1. Roots will get less support and nutrients
  2. Dense evergreen forests will form immediately
  3. Mangroves will grow automatically
  4. Plants will not need soil
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  1. Because sandy soil always increases nutrients
  2. Because water is less and the available water drains quickly
  3. Because sunlight is not available at all
  4. Because altitude is always high
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  1. They grow only in Himalayan snow
  2. They grow only in dry desert
  3. They are adapted to saline marshy coastal water and soil
  4. They grow only in cities
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  1. Because soil will disappear automatically
  2. Because rainfall will always stop
  3. Because roots will leave soil
  4. Because plants will not get enough light for photosynthesis and development
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  1. By reducing water loss in the dry season
  2. By floating in highly saline water
  3. By increasing snowfall
  4. By removing soil completely
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  1. Both occur in the same climate
  2. Evergreen occurs in high humidity and thorny vegetation in low rainfall
  3. Thorny forests occur only in snow
  4. Evergreen forests occur only in deserts
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  1. Both always make soil deeper
  2. Both immediately increase rainfall
  3. Both reduce vegetation cover and leave soil exposed
  4. Both reduce sea level
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  1. Green cover will always increase
  2. Wildlife habitat will increase
  3. Soil erosion will completely stop
  4. Natural vegetation and habitats may decrease
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  1. Soil temperature slope and human impact may differ
  2. Rainfall has no relation with vegetation
  3. Plants are same everywhere
  4. Latitude has no effect
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  1. Where rainfall is very high and moisture is permanent
  2. Where rainfall is low for trees but enough for grasses
  3. Where there is no soil
  4. Where there is only saline sea water
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  1. Because saline water is always present there
  2. Because only desert heat occurs there
  3. Because low temperature and short growing season limit trees
  4. Because rainfall never occurs there
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  1. Because vegetation always increases in cities
  2. Because urbanisation always doubles rainfall
  3. Because roads and buildings change soil drainage and green habitats
  4. Because urbanisation has no relation with land
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  1. For road expansion
  2. For agricultural expansion
  3. For increasing mining
  4. To conserve biodiversity habitat and ecological balance
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  1. By changing temperature photoperiod and intensity of sun rays
  2. By changing railway routes
  3. By changing language
  4. By instantly making soil saline
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  1. Vegetation will always double
  2. There will be risk of lack of air and rot in roots
  3. Sunlight will stop completely
  4. There will be no effect on vegetation
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  1. Thin soil always promotes deep roots
  2. Deep soil blocks sunlight
  3. Deep soil helps roots spread and take water and nutrients
  4. Soil depth has no effect
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  1. Transpiration and water conservation in soil may decrease
  2. Sun will always stop
  3. Sea will form immediately
  4. Rainfall will become same everywhere
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  1. Where mining has to be increased
  2. Where green cover has decreased due to deforestation
  3. Where salt in sea water must be increased
  4. Where all trees must be cut
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  1. Because fire makes rainfall permanent
  2. Because fire instantly turns soil into fertile forest
  3. Because food habitat and shelter may be destroyed
  4. Because wildlife does not need forests
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  1. Always dense and tall
  2. Fully developed without soil
  3. Only mangroves
  4. Weak or sparse
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  1. Roots bind soil and reduce erosion
  2. Roots blow soil into air
  3. Roots stop rainfall
  4. Roots end sunlight

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