Step 1: Understanding Sectors of the Economy
The economy is divided into primary, secondary, tertiary, and quaternary sectors. Each sector deals with different stages of production and services.
Step 2: Primary Sector and Milk Production
The primary sector involves the extraction and collection of raw materials directly from nature. This includes activities such as farming, fishing, and mining. Milk production falls under the primary sector because it is directly obtained from animals through farming practices.
Step 3: Why the other options are incorrect
- (B) Secondary sector: This sector involves processing raw materials into finished goods, which is not the case for milk production.
- (C) Tertiary sector: The tertiary sector deals with services rather than the production of raw goods.
- (D) Quaternary sector: This sector is focused on knowledge-based services, such as information technology, which is unrelated to milk production.
Thus, the correct answer is option (A) Primary.
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.