The survey of means used by school children are depicted by following bar diagram. Study it and answer questions that follow. (ques no 77-80)

Q. What percent of children travelling by train is children walking to school ?

Read the following passage and answer the questions below :

The term Telos means that for which something is done or that toward which animate begins strive. Thus, an eye is for seeing, a walk for health, a house for shelter, and a book for reading. Little t teleology so conceived, though mustn't be confused with big t Teleology, according to which the whole of nature is either progressing, by virtue of some world-historical or cosmic force, toward some overarching purpose or is already the embodiment of some diving plan. That teleology needn't entail Teleology was evolutionary theory's great insight. Form the moment that organic life first appeared on Earth. Some 4.5 billion years ago, natural selection has been an inexorable, unceasing and entirely mindless process of winnowing and sifting through a set of design plans. The geological record is littered with plant and animal species falling extinct under the pressures of climatic and geographical changes. Only those designs that natural selection has blindly hit upon and that have worked, designs that are well adapted to the specific environment and that therefore confer upon certain organisms or certain species some ostensible advantage, will be inheritable by their progeny. This implies that there is no Higher End, no Higher Purpose that governs the actions of intelligent and unintelligent life, only local purposes fitting into the materialist picture of "selfish genes' seeking to pass on genetic information to their descendants and infinitum. There is therefore no Teleology from on high, only teleology all the way down. And there is no more need for what Daniel Dennett has called the "mind-first" hypothesis either.

Nothing under the sun is exempt from the process of natural selection-not eyes or wings and certainly not minds. Thanks to research in evolutionary theory over the past 150 years. It is no longer mysterious how an ignorant, mindless machine, by means of chance, trail and error, and gradual modifications taking place over long swaths of time, could have produced sophisticated, cognizant machines able to reflect upon the process itself. What recommends the evolutionary story of the emergence of intelligent life is not just its plausibility : it is the fact, confirmed time and again by studies in geology, genetics, cell biology, and botany, that it is true.

Q. According to the passage, the principal difference between teleology and Teleology could be understood in terms of the difference between