Concept:Extractive industries belong to the primary sector because they obtain natural resources directly from the earth.
Explanation:Extractive industries are those engaged in the removal or tapping of natural resources.
Examples include farming, fishing, mining, lumbering, and oil drilling.
These industries are called primary industries because their outputs are raw materials.
Manufacturing and other secondary industries depend on these raw materials as inputs.
This classification groups industries according to the stage of production they represent.
The term "direct industries" is not the standard name for extractive activities in commerce.
"Indirect industries" also do not refer to the extraction of resources.
"Servicing industries" provide support or assistance to other businesses rather than extracting raw materials.
Therefore, the extractive industry is correctly described under the primary sector.
Answer:D. primary industries