Answer:
Primary sector
Step-by-step explanation:
The primary sector is a part of economic sector which is often considered as the most essential sector in less developed countries, and significantly less important in industrial countries. It is the sector of an economy making direct use of natural resources. For example: mining, quarrying, farming, fishing and forestry, all of which produce raw materials that can be processed in to a finished product.
Hence, Economic sector that deals with the extraction of raw materials from the environment is PRIMARY SECTOR.