Which relief factors affect the flora and fauna of India?

Relief factors that affect the flora and fauna of India are the following:
1. Land
(i) The nature of land influences the type of vegetation.
(ii) The fertile land is generally used for agriculture.
(iii) The undulating and rough terrains are areas where grassland and
woodlands develop and give shelter to a variety of wildlife.
2. Soil
(i) Different types of soils provide a basis for different types of vegetation.
(ii) The sandy, soils of the desert support cactus and thorny bushes; while wet, marshy deltaic soils support mangroves and deltaic vegetation.
(iii) The hill slopes with some depth of soil have conical trees.