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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 4 · 25 questions

TOPIC PRACTICE

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25 questions

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  1. Timing of flowering and growth
  2. Depth of river
  3. State boundary
  4. Width of road
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  1. When total rainfall is high, but there is a long dry interval between rains
  2. When total rainfall is extremely low, even if it is received regularly
  3. When the soil has very high water-holding capacity
  4. When temperature remains favourable for plant growth throughout the year
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  1. Erosion will increase and regrowth will become difficult
  2. Soil will always become more fertile
  3. Dense forest will form immediately
  4. Need for water will end
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  1. Only salt-tolerant vegetation will survive
  2. Every plant will grow fast
  3. Salinity does not affect plants
  4. Only cactus will be most suitable
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  1. Warmth and moisture together can support dense growth
  2. Temperature and rainfall have no relation with plants
  3. Low rainfall always creates mangroves
  4. Extreme cold and water shortage create evergreen forests
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  1. Low rainfall, poor soil and harsh temperature conditions
  2. High rainfall and deep fertile soil
  3. Continuous moisture and favourable temperature
  4. Complete absence of deforestation
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  1. In a dry hot region
  2. In a marshy coastal region
  3. In a permanently waterlogged delta
  4. In a high rainfall forest
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  1. Temperature, moisture and soil conditions change with altitude
  2. All plants become same upward
  3. Altitude has no relation with climate
  4. Mountains have no sunlight
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  1. Pressure on habitat and food chain
  2. Change in language
  3. Increase in river length
  4. End of photoperiod
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  1. High rainfall will make tropical plants grow rapidly
  2. Lack of light and heat can limit plant growth
  3. Rainfall alone will determine all the vegetation of that area
  4. Low temperature will allow only desert cacti to grow there
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  1. Despite equal rainfall, vegetation may change if soil and temperature differ
  2. Only rainfall decides vegetation
  3. Soil and temperature are irrelevant
  4. Human land use has no effect
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  1. Possibility of natural vegetation regrowth can increase
  2. All plants will end immediately
  3. Soil erosion will always increase
  4. Effect of rainfall will end
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  1. To understand the relationship between soil types and plant distribution
  2. To locate the capital of a region
  3. To count railway routes in an area
  4. To identify language regions in an area
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  1. Ability to tolerate marshy and oxygen-poor soil
  2. Tolerance of extreme dryness
  3. Tolerance of permanent snow
  4. Life without light
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  1. When transpiration is high and water availability is low
  2. When soil is deep and moist
  3. When rainfall is regular
  4. When waterlogging is permanent
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  1. Low rainfall increases possibility of sparse thorny vegetation
  2. Saline marsh creates alpine forest
  3. Altitude always increases temperature
  4. Deforestation makes natural forests dense immediately
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  1. Suitable species may increase and less tolerant species may decline
  2. There will be no effect on vegetation
  3. All plants will remain same
  4. Need for soil will end
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  1. Because soil, slope, rainfall, and human pressure vary from place to place
  2. Because national averages accurately represent all local environmental conditions of an area
  3. Because conservation measures use only the country's total forest-cover percentage
  4. Because vegetation and human activities are identical everywhere within the same climatic region
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  1. Human land use, soil conditions, or soil erosion may also be responsible
  2. Low vegetation is always an indicator of high rainfall
  3. Rainfall has no effect on natural vegetation
  4. Natural vegetation is determined only by temperature
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  1. When rainfall or soil conditions are limited for trees but enough for smaller vegetation
  2. When there is excess water and deep soil everywhere
  3. When there is no deforestation at all
  4. When both temperature and rainfall are ideal
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  1. Water shortage will limit growth
  2. Photoperiod alone will create dense forest
  3. Need for soil will end
  4. All plants will become mangroves
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  1. Write natural factors first, then human impact and examples at the end
  2. Write only one plant name
  3. Give only a list of animals
  4. Explain only state boundary
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  1. Prevent soil erosion, conserve water and reduce uncontrolled cutting
  2. Increase deforestation and keep grazing uncontrolled
  3. Only changing names
  4. Ignoring water and soil
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  1. Treating just one factor as the sole determining cause of vegetation
  2. Examining both soil type and amount of rainfall
  3. Identifying the effects of human activities separately from natural factors
  4. Including relief features such as slope and altitude in the analysis
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  1. Regeneration will weaken and vegetation density may decrease
  2. Dense evergreen forests will grow immediately
  3. Soil water holding capacity will always increase
  4. Photoperiod will end

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