The correct option is (a) 1 only.
Explanation
Economic activities are broadly classified into three sectors-Primary, Secondary, and Tertiary-based on the nature of the activity and its relationship with natural resources.
Statement 1 is Correct:
Primary activities are directly connected with the extraction and production of natural resources. These activities rely on the utilization of earth's resources such as land, water, vegetation, building materials, and minerals. Examples include agriculture, fishing, forestry, and mining.
Statement 2 is Incorrect:
Secondary activities are concerned with the processing of natural resources, not their extraction. These activities add value to raw materials by transforming them into finished goods. Examples include manufacturing steel from iron ore, baking bread from wheat, and weaving cloth from cotton.
Statement 3 is Incorrect:
Tertiary activities do not involve the manufacturing of goods. Instead, they provide support services to the primary and secondary sectors and the community. These activities involve the generation of services rather than physical products. Examples include transport, trade, banking, insurance, and advertising.
Key Takeaway:
Primary Sector involves extraction (Raw Materials); Secondary Sector involves processing (Manufacturing); Tertiary Sector involves support (Services).