The Three Economic Sectors. According to the three-sector theory, all economic activity can be classified into one of three sectors: the primary sector, the secondary sector and thetertiary sector.
The Three Gorges Dam is located along the Yangtze River.
Storms are one of the major hazards that are associated to coastal regions. Storms, flooding, and erosion are closely associated and can happen simultaneously. Tropical storms or Hurricanes especially can devastate coastal regions.They typically weaken rapidly over land surface where they are cut off from their primary energy source, for this reason coastal regions are particularly vulnerable to damage caused by the tropical cyclone as compared to inland regions.The destruction from a tropical cyclone, such as a hurricane or tropical storm, depends mainly on its intensity, its size, and its location. Tropical cyclones remove forest canopy as well as change the landscape near coastal areas, by moving and reshaping sand dunes and causing extensive erosion along the coast.
Answer:
Hardness is the mineral's ability to resist abrasion or scratching.
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