Summary writing
Unseen extract no 1)
It is true that progress in knowledge has led to the development of science and technology which in tum, profoundly altered our environment. For example, fertilizers and insecticides. However both give rise to pollution. Each one in the modem world has accumulated in our bodies a few milligrams of D.D.T. which is organo-chlorine, a type of insecticide. The D.D.T. level in fish is rising and already some fish eating birds are becoming sterile. Fertilizers used in farmlands are washed away by rain into rivers, lakes and reservoirs.
The heavy intake content in fertilizers leads to wild growth of vegetation in them, which in turn de-oxygenizes the water and as a result, all the frsh is lost. Massive industrialization too has led to serious pollution of the environment. Millions of tons of smoke, sulphur gas, ash and unknown quantities of toxic by-products are sent up everyday all over the world and we simply do not know if our chemical environment is slowly poisoning us all. What is even worse, the increase in the carbon dioxide content of the atmosphere from burning oil and coal may, in time, prevent the escape of the sun's heat from the earth. Leading to a rise in the earth's temperature, the melting of ice - caps, and arise in the level of the ocean.
The sea has become a cheap dumping ground for all kinds of waste products. Although the sea has a great capacity to break down all kinds of waste, this capacity is not unlimited, especially in shallows seas. Industrial effluent gets washed out to sea, for industries tend to concentrate to coastal areas in order to be able to dispose of unwanted waste cheaply. Atomic wastes as well as poison gases are dumped in the sea by industrial and military authorities.
It would be foolish to shut our eyes to the dangers of the pollution that human beings cause. It is true that more and more power have become aware of the dangers of pollution.
Rivers are being gradually restored to health : International organizations are trying to keep the seas campaigns are being organised against cutting down trees. Public opinion is gradually being aroused to concern and if all of us become concerned about our environment, we shall be able to keep the earth habitable for future generations.
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Tourism has emerged as the world's largest industry. Growing rapidly in the last two decades, today it accounts for 60/o of world output and employs some 100 million people
around the globe. It has developed immense revenue and development potential and stands today as a unique natural renewable resource industry.
Tourism - the travel based recreation provides people with a change of visiting a
place and a break from the monotony of daily life. It brings people of different nations together, allowing them to come into close contact with each other,s customs and other aspects of life. The knowledge and experience gained in the process can lead to greater understanding and tolerance and can even foster world peace. A study conducted by the United Nations has shown that developing countries, in particular, can reap handsome benefits out of tourism which greatly boosts national income.
Tourism generates employment and adds to the entepreneorial wealth of a nation.
To promote safe tourism it is imperative to understand the factors that hempen the growth of tourism and check them effectively. General instability of the nation, political disturbances, violence, terrorism etc. effects the flow of tourists.
Whatever the problems, India must work hard to reap the benefits from this
industry. as the country has everything to attract visitors from far and near.
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