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Subjects

Geography

Factors Affecting Vegetation

वनस्पति को प्रभावित करने वाले कारक

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.

Practice questions

Why can vegetation be weak even in a high rainfall area?HardLevel 59What purpose do thorns and waxy coating serve in desert vegetation?HardLevel 59Change of vegetation belts with altitude is the result of which cause?HardLevel 59If soil repeatedly washes away on a slope what effect will occur on vegetation?HardLevel 59Why do sandy soil and low rainfall together limit vegetation more?HardLevel 59Why are mangrove forests considered different from normal terrestrial vegetation?HardLevel 59Even with fertile soil why will plant growth be affected if photoperiod is very short?HardLevel 59How is leaf shedding in deciduous forests linked with climate?HardLevel 59What is the basic climatic difference between evergreen forest and thorny vegetation?HardLevel 59How can deforestation and overgrazing both increase land degradation?HardLevel 59If agriculture expands over natural forest land what will be the main ecological effect?HardLevel 59Why can vegetation be different in two areas with the same rainfall amount?HardLevel 59When is development of grasslands more likely instead of dense forests?HardLevel 59Why are large trees fewer in alpine vegetation?HardLevel 59Why is the effect of urbanisation on vegetation not limited only to cutting trees?HardLevel 59Protected areas are created not only to save trees but for which broader purpose?HardLevel 59How does latitude indirectly affect vegetation?HardLevel 59If an area has fertile deep soil but frequent waterlogging what problem will arise?HardLevel 59Which is the most correct relation between soil depth and root system?HardLevel 59If vegetation cover decreases what effect can occur on the local water cycle?HardLevel 59