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).
Find the unknown frequency if 24 is the median of the following frequency distribution:
\[\begin{array}{|c|c|c|c|c|c|} \hline \text{Class-interval} & 0-10 & 10-20 & 20-30 & 30-40 & 40-50 \\ \hline \text{Frequency} & 5 & 25 & 25 & \text{$p$} & 7 \\ \hline \end{array}\]
Two concentric circles are of radii $8\ \text{cm}$ and $5\ \text{cm}$. Find the length of the chord of the larger circle which touches (is tangent to) the smaller circle.