4.Read the extract given below and answer the questions that follow:
The value of final goods and services produced in each sector during a particular year provides the total production of the sector for that year. And the sum of production in the three sectors gives what is called the Gross Domestic Product (GDP) of a country. It is the value of all final goods and services produced within a country during a particular year. GDP shows how big the economy is. In India, the mammoth task of measuring GDP is undertaken by a central government ministry. This Ministry, with the help of various government departments of all the Indian states and union territories, collects information relating to total volume of goods and services and their prices and then estimates the GDP. When we produce a good by exploiting natural resources, it is an activity of the primary sector. The secondary sector in which natural products are changed into other forms through ways of manufacturing that we associate with industrial activity. After primary and secondary, there is a third category of activities that falls under the tertiary sector and is different from the above two. These are activities that help in the development of the primary and secondary sectors. These activities, by themselves, do not produce a good but they are an aid or a support for the production process.
(i) Which sector has emerged as the largest producing sector in India?
(ii) Life insurance is an activity of which sector?
(iii) What is GDP?​