Answer:
(i) Primary sector:
(a) There are many activities that are undertaken
by directly using natural resources.
(b) They are called primary since it forms
the base for all other products that are subsequently produced.
(c) Since most of the natural products we
get are from agriculture, dairy, fishing, forestry, this sector is also called
agriculture and related sector.
E.g.: In activities like dairy, we are
dependent on the biological process of the animals and availability of fodder,
etc.
(ii) Secondary sector:
(a) It covers activities in which natural
products are changed into other forms through ways of manufacturing that we
associate with industrial activity.
(b) The product is not produced by nature
but has to be made and therefore, some process of manufacturing is essential.
(c) Since this sector gradually becomes associated
with the different kinds of industries that come up, it is also called an industrial
sector.
Eg: Using sugarcane as a raw material, we
make sugar or gur.
(iii) Tertiary activities:
(a) These are activities that help in the
development of the primary and secondary sectors.
(b) These activities, by themselves, do not
produce a good but they are an aid or a support for the production process.
(c) Since these activities generate
services rather than goods, the tertiary sector is also called the service
sector.
Eg: Goods that are produced in the primary or
secondary sector need to be transported by trucks or trains and then sold in
wholesale and retail shops.
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