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  1. Feb 05, 2020 · What are the sectors of the economy? Human activities which generate income are known as economic activities. Economic activities are broadly grouped into primary, secondary, tertiary activities. Higher services under tertiary activities are again classified into quaternary and quinary activities.

  2. The sectors of the economy: primary, secondary and tertiary Primary activities . The primary activities are those belonging to the sector of the economy that makes direct use of the natural resources . This includes agriculture, forestry, mining and fishing. Generally, the primary sector is the most important in developing countries and less in ...

  3. Apr 20, 2022 · For many health problems, a combination of primary, secondary and tertiary interventions are needed to achieve a meaningful degree of prevention and protection. However, as this example shows, prevention experts say that the further “upstream” one is from a negative health outcome, the likelier it is that any intervention will be effective.

  4. Jan 28, 2020 · Primary Sector . The primary sector of the economy extracts or harvests products from the earth such as raw materials and basic foods. Activities associated with primary economic activity include agriculture (both subsistence and commercial), mining, forestry, grazing, hunting and gathering, fishing, and quarrying.

  5. Percentages of a country's economy made up by different sectors. Countries with higher levels of socio-economic development tend to have proportionally less of their economies operating in the primary and secondary sectors and more emphasis on the tertiary sector. The less developed countries exhibit the inverse pattern.

  6. industry, group of productive enterprises or organizations that produce or supply goods, services, or sources of income. In economics, industries are generally classified as primary, secondary, tertiary, and quaternary; secondary industries are further classified as heavy and light. This sector of a nation’s economy includes agriculture, forestry, fishing, mining, quarrying, and the ...

  7. Sewage treatment (or domestic wastewater treatment, municipal wastewater treatment) is a type of wastewater treatment which aims to remove contaminants from sewage to produce an effluent that is suitable for discharge to the surrounding environment or an intended reuse application, thereby preventing water pollution from raw sewage discharges.

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