Explanation:
When the plates collide, the crust "combates" forming the ridges. India and Asia impacted 55 million years ago, causing the slow formation of the Himalayas, the highest mountain system on the planet. As the shock continues, the mountains rise increasingly.
Physical factors that affect population distribution include altitude and latitude, relief, climate, soils, vegetation, water and location of mineral and energy resources. It is important to note that most of the physical factors influence population distribution only indirectly through climatic conditions.
