Read the following passage and answer the questions given below it:
Now the question arises, what is the secret of the longevity and imperishability of Indian culture? Why is it that such great empires and nations is Babylion, Assyria, Greece, Rome and Persia, could not last more than the footprints of a camel in the shifting sands of the desert, while India which faced the same ups and downs, the same mighty and cruel hand of time, is still alive and with the same halo of glory and splendour ? The answer is given by Prof. J. B. Pratt of America. According to him, the Hindu religion is the only religion in the world which is 'self-perpetuating and self-renewing.' Unlike other religions 'not death, but development' has been the fate of Hinduism. Not only Hindu religion but the whole culture of the Hindus has been growing changing and developing in accordance with the needs of time and circumstance without losing its essential and imperishable spirit. The culture of the Vedic ages, of the ages of the Upanishads, the philosophical systems, the Mahabharata, the Smirities, the Puranas, the commentators, the medieval saints and of the age of the modern reformers is the same in Spirit and yet very different in form. Its basic principles are so broad-based that they can be adapted to almost any environment of development.