Step 1: Economic Sectors Overview
Economic activities are categorized into four main sectors: primary, secondary, tertiary, and quaternary.
Step 2: The Primary Sector
The primary sector of the economy involves the extraction and harvesting of natural resources. This includes activities such as agriculture, fishing, mining, and forestry.
Step 3: Agriculture in the Primary Sector
Agriculture is a primary economic activity as it involves the cultivation of crops and the raising of livestock, both of which are essential for sustaining human life.
Step 4: Conclusion
Since agriculture is the direct use of natural resources, it is classified under the primary economic sector.
The correct answer is option (A).
$PQ$ is a chord of length $4\ \text{cm}$ of a circle of radius $2.5\ \text{cm}$. The tangents at $P$ and $Q$ intersect at a point $T$. Find the length of $TP$.