A new volcanic arc forms at the site of the easternmost transform, and many complications develop in SE Asia (Philippines, etc.) because of transforms turning into arcs, and various subduction-flips as thick (plateau-type) ocean crust refuses to subduct. A new subduction zone develops north of Australia.
Some of the causes of the European voyages of exploration were: 1  Alternate trade routes: Europe was dependent on Middle East countries for the import of spices and was looking for alternate trade routes to Asia and Africa to obtain spices (ginger, nutmeg, clove, cinnamon, etc.) and luxury goods (silk, gold, ivory, etc.) cheaply.
Tourism can create great pressure on local resources like energy, food, and other raw materials that may already be in short supply. Greater extraction and transport of these resources exacerbates the physical impacts associated with their exploitation.egative impacts from tourism occur when the level of visitor use is greater than the environment's ability to cope with this use within the acceptable limits of change.