Examlex
The introduction of formal preschool education has occurred within the last century.
Economic Sectors
Categories of the economy based on their main activities, such as agriculture, manufacturing, and services.
Work Practices
The customary methods and operations employed by employees or within an organization to accomplish tasks and goals.
Technologies
The application of scientific knowledge for practical purposes, especially in industry and our daily lives.
Air Pollution
The presence or introduction into the air of substances harmful to humans, animals, and the environment, which can come from both natural and human activities.
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