Question

How decrese in temperature with increase in altitudes led to changes to natural vegetation in mountain areas?

Answer 1

In mountainous areas, the decrease in temperature with increase in altitude leads to corresponding changes in natural vegetation. ... At high altitude of more than 3600 metres temperate forests and grasslands give way to alpine vegetation.

Answer 2

The northern slopes of the hills in Himalayan region are at high altitude and have low   temperature or are snow covered. This does not allow much vegetation. In the southern part   of the hills there are plains and valleys watered by rivers and with fertile soil and pleasant   temperature levels all required for dense growth of vegetation.