Page 144 - SST Class 07

Panama Canal : The Panama Canal is a 40 km 3. The Suez Canal was opened for water transport
long canal which runs between North America in 1879. __________
and South America. It connects the Pacific Ocean 4. Air transport is expensive due to a high cost of
with the Atlantic Ocean. Thus, it helps south- fuel. __________
eastern Asian countries and Australia to trade with
countries in North America and South America. International Air Transport

Just Think! The international air transport is used to connect
different countries. All important countries are
connected with one another by air transport. An
Most types of vehicles cause a lot of pollution. Are aeroplane flying over another country may have to
there any vehicles which do not cause any fly over the airspace of a third country, if there is
pollution?
such an agreement. Such aeroplanes are allowed
Air Transport to fly in a narrow zone for security reasons.
Air transport is the fastest means of transport. It F ind Outind Out
was developed in the early twentieth century. It is
very expensive due to a high cost of fuel. Air Which is India’s official international airline?
transport is chiefly used for passengers and light
goods. It can be divided into two types—domestic The international air transport has developed well
and international. in almost all countries of the world, but its density
is far less in Africa.
Info Bits Activity
Info Bits
List some of the important ports and international
The fuel used by an aeroplane is called ATF (aero-
turbine fuel). airports of the world. Also find out in which
countries they are located.
Domestic Air Transport
The domestic air transport operates within a COMMUNICATION
country. In India, all important cities are By communication is meant conveying the needs,
connected by air routes. The countries in Europe, feelings and thoughts among people. In the past,
North America and South America have a dense communication was tiresome as the people had to
network of domestic air transport. walk on foot or ride animals over long distances,

which consumed a lot of time. The postal
department has played a very vital role in this. At
present, technology has led in the development of
communication all over the world, because it has
become possible to communicate with other
people instantly using telephone, fax, internet etc.
The artificial satellites have helped in
An aeroplane An airport communication a great deal. It is possible to
connect with other people with a click of the
Quiz Time
mouse or dialling of a number, however distant a
Write True or False : person may be located. Communication can be
private or mass.
1. Waterways are the cheapest means
of transport. __________ Private Communication
2. Small ships are not used for inland Private communication is held between two
waterways. __________ individuals. The means used for this purpose are
Contemporary Social Science-7
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