The alpine vegetation in the Western Himalayas is found only up to a height of 3000 metres while in the Eastern Himalayas it is found up to a height of 4000 metres. The reason for this variation in the same mountain range is that Incorrect!
Eastern Himalayas are higher than Western Himalayas
Eastern Himalayas as are nearer to the equator and sea coast than Western Himalayas
Eastern Himalayas get more monsoon rainfall than the Western Himalayas
Eastern Himalayan rocks are more fertile than the Western Himalayan rocks