The study of one’s own region is the first step to become a global citizen. The purpose of studying our local territory is to understand life in our environment. In the last five lessons,you have learnt about various geographical characterstics of our country. In this lesson and those that follow, we shall learn about the
geography of Tamil Nadu. You will get to know about the etymology, history of formation, location, size, physical divisions, rivers, climate,soil and natural vegetation of Tamil Nadu in this chapter.Its exquisite physiography and climate
makes our state unique in India. It has long and sunny beaches, waterfalls, hills, forests and varied flora and fauna.Western Ghats extend from the Niligris
in the north to Marunthuvazh Malai atSwamithope in Kanyakumari district in the
south. Height of the Western Ghats ranges from 2,000 to 3,000 metres. It covers an area of about 2,500 sq.km. Though the Western Ghats is a continuous range, it has somepasses. The passes are Palghat, Shencottah,Aralvaimozhi, and Achankoil. The Niligris, Anaimalai, Palani hills, Cardamom hills,Varusanadu, Andipatti and Agasthiyar hills are the major hills of Western Ghats .Unlike Western Ghats, Eastern Ghats is a discontinuous and irregular one. It is dissected at many places by the rivers, which drain into the Bay of Bengal. Its height ranges from
1,100 to 1,600 metres. These hills separate the plains from plateaus. Javadhu, Servarayan, the Kalrayan, Kollimalai and Pachaimalai are the major hills of the Eastern Ghats of Tamil Nadu and are located in northern districts of the state.
The Indian postal network is the largest in the world with 1,55,000 post
offices. Of these more than 1,39,000 post offices are located in rural
areas. The postal service was opened to the public in the country in
1837. The first Indian postal stamp was issued in 1852 in Karachi.
Collecting and delivering mail is the primary function of the department
of posts. It introduced the Quick Mail Service in 1975. The Quick Mail
Service functions on the basis of the system of PIN (Postal Index
Number) code which was introduced in 1972. The premium products include
the Money order, e-money order, Speed Post, Express Parcel Post,
Business Post, Media Post, Satellite Post, Retail Post, Greeting Post,
Data Post, Speed Net and Speed
Passport Services.India has one of the
largest telecommunication networks in Asia. Apart from the urban areas
more than two-thirds of the villages in India have already been covered
with Subscriber Trunk Dialing (STD) telephone
facility, while International communication can be made through ISD (International
Subscriber
Dialing). There is an uniform rate of STD facilities all over India.
Telephone is a form of oral communication. It is considered very
essential for the growth of commerce. It is the most preferred form as
it provides instant communication. Mobile phone, fax and internet are
the other personal communication used in the country.Trade is an
important phenomenon that
decides the economic growth of a country.
Trade is an act (or) process of buying, selling or exchanging of goods
and services. The primitive method of trade was known as the Barter
system where goods were exchanged for goods. Later on, money was
introduced as a medium of exchange in buying and selling of goods. The
difference in value between the imports and exports is called balance of
trade. The situation in which the value of exports exceeds the value of
imports is termed as favourable balance of trade and the reverse
position is termed as unfavourable balance of trade.The study of one’s
own region is the first step to become a global citizen. The purpose of
studying our local territory is to understand life in our environment.
In the last five lessons, you have learnt about various geographical
characterstics
of our country. In this lesson and those that follow, we shall learn
about the geography of Tamil Nadu. You will get to know about the
etymology, history of formation, location, size, physical divisions,
rivers, climate,
soil and natural vegetation of Tamil Nadu in this
chapter.Its exquisite physiography and climate makes our state unique in
India. It has long and sunny beaches, waterfalls, hills, forests and
varied flora and fauna.
10th SS 1st Mid-Term one mark Quiz - Click here to visit
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