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
Which combined reason best explains mangrove vegetation in delta regions?ExpertLevel 58If plants in a low rainfall area have small thorny leaves, this is an adaptation to reduce which process?ExpertLevel 58What is the most analytical reason for less natural vegetation in flat fertile plains?ExpertLevel 58Which statement gives the most correct causal relation between climate and vegetation?ExpertLevel 58If an area has moderate rainfall but a clear dry season, how can deciduous forests adapt?ExpertLevel 58In which condition can vegetation differ in two areas even at the same latitude?ExpertLevel 58Why is photoperiod important in plant growth?ExpertLevel 58If extreme cold and very low moisture occur together, what will be the effect on natural vegetation?ExpertLevel 58Why can grassland be considered an intermediate condition between dense forests and desert scrub?ExpertLevel 58If natural vegetation starts decreasing in an area, what will be the most direct effect on wildlife?ExpertLevel 58Which example correctly shows the effect of soil salinity on vegetation?ExpertLevel 58If an area has heavy rainfall but remains waterlogged for long, which vegetation may be more suitable?ExpertLevel 58Why is the distribution of natural vegetation in India highly diverse?ExpertLevel 58If a vegetation map shows successive belts on mountains, what is the most suitable explanation?ExpertLevel 58If an area has high rainfall but very low temperature, why will tropical evergreen forests not form?ExpertLevel 58In which situation will natural vegetation be most changed by human influence?ExpertLevel 58Which statement correctly relates leaf structure with water availability?ExpertLevel 58Which option gives an incorrect match of factor and vegetation?ExpertLevel 58If climate is favourable but soil nutrients are very low in an area, what effect is possible on vegetation?ExpertLevel 58How can difference between rainfall amount and rainfall distribution affect vegetation?ExpertLevel 58