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Terrorism can be defined as the use of violence to achieve some goals. It is completely different from war and policy.

Terrorism is just a word in English, but it is a hazard for mankind. India faces the problems of poverty, population, hunger and literacy.

The reform movement in Bengal initiated by Rammohan Roy, Pandit Iswar Chandra Vidyasagar and others were transformed into a revolution, as it were, by the efforts of Keshab Chandra Sen and the Brahmo Samaj, Ramakrishna Paramahansa, Vivekananda, etc.

Ecology is a vast subject as it includes the life habits of over a million different kinds of living organisms and considers all manners of influences and interactions among them.

In order to make multiple copies (clone) of the gene, it has to be joined to another DNA segment having the spontaneous ability to replicate. This DNA having the ability to replicate along with the joined DNA fragment is known as a vector or cloning vehicle. A suitable vector should have following properties:

The discovery of two types of enzymes in 1970s solved the problem of gene cloning. One is the restriction endonuclease and the other one is DNA ligase. The restriction endonuclease or restriction enzymes (RE) are synthesized by bacteria as a part of their defence mechanism.

It has been pointed out in an earlier section that the level of fertility in developing countries is very much higher than that in developed countries.

A note of caution is necessary before discussing the levels and trends in fertility in the various countries and regions and in the world considered as a whole.

Technical education is the crying need of India. India has had an over-dose of liberal education. Our education is incomplete and without any purpose if we do not receive some sort of technical education besides our liberal education. A just balance between liberal education and technical education needs to be maintained.

The village doctor is generally a quack. He is more expert in killing than in healing. He has not been to any medical school or college nor has he had any practical training under some qualified doctor.