Importance of Tertiary Sector :
i. Basic services like hospitals, educational institutions, defence, and transport are the part of tertiary sector.
ii. Development of agriculture and industry leads to the development of services
iii. As the income level rises, tourism, shopping, private schools and professional training also expands. People start demanding more services this leads to the expansion of the tertiary sector.
iv. Information and communication technology also play an important role in this expansion.
v. Large number of workers are engaged in this sector, as the demand for services grow.