Ques.1. Why are the southern slopes of Himalayan region covered with thick vegetation cover as compared to northern slopes of the same hills? Ques.2. Why are the western slopes of the Western Ghats covered with thick forests and not the eastern slopes?

The growth of vegetation depends upon the amount sunlight and rainfall received. The southern slopes of the Himalaya receive more rain due to the south west monsoon winds which travel west along the southern slops. ... So the southern slopes are covered with thick vegetation as compared to the northern slopes.Why have the western slopes of the Western Ghats covered with thick forests and not the eastern slopes? It is because the western slope gets much heavier rainfall than the eastern slopes. Moisture laden air moves eastwards across, the Western Ghats during the monsoon season.

Tropical climate is experienced in the nothern countries of south america