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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 5 · 25 questions

Practice questions

01If an area has sufficient rainfall but shallow soil what is the main reason vegetation may not be dense?

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02What is the most scientific reason for change in vegetation type with increasing altitude?

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03Small leaves in areas of low rainfall and high temperature are an adaptation for what?

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04Why can mangrove forests survive in saline and marshy coastal areas?

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05If slope is very steep why can vegetation be less despite good rainfall?

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06What can be a possible reason for different vegetation in two areas with similar climate?

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07What is the main reason soil erosion increases after deforestation?

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08Why can plant roots rot in waterlogged soil?

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09Leaf shedding in deciduous forests is linked with which climatic condition?

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10Which factor best explains the major difference between evergreen forests and thorny vegetation?

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11Why is photoperiod important in the plant life cycle?

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12If temperature and rainfall are suitable but overgrazing continues what will happen?

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13How does rainfall amount help explain the difference between grassland and dense forest?

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14What is the main reason for fewer large trees in alpine vegetation?

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15What change can occur in vegetation structure due to repeated forest fires?

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16If vegetation along a river bank is removed what risk becomes higher during floods?

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17What can be the main effect of agricultural expansion on natural vegetation?

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18How does urbanisation affect vegetation beyond only cutting trees?

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19Why are local species important while planning afforestation?

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20How can natural vegetation act as an indicator of local climate?

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21Through which process does latitude indirectly affect vegetation?

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22Why can local temperature increase when vegetation cover decreases?

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23Why can human wildlife conflict increase when vegetation decreases?

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24Why can fertile soil with poor drainage still be a problem for plants?

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25Which combination is most suitable for thorny vegetation?

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