India has 10 major bio-geographical zones based on differences in climate, soil and vegetation across its regions. The zones include the Trans Himalayan, Himalayan, Desert, semi-arid, Western Ghat, Deccan Plateau, Gangetic Plain, North East, Coastal and Islands zones. India's climate and soils also vary significantly between zones. The climate is influenced by the Himalayas and is tropical in the south, temperate in the north. Major soil types include black, red, desert, mountain and laterite soils. Vegetation also differs between forest types like tropical, montane, temperate and alpine, as well as grassland types.