Given below are four jumbled sentences. Out of the given options pick the one that gives their correct order. A. Using matches however came much later. B. The first great discovery that man probably made was that of fire. C. In olden times fires were made by rubbing two flints against each other till a spark was produced. D. And this spark set fire to dry straw, leaves or wood.

Given below are four jumbled sentences. Out of the given options pick the one that gives their correct order. A. Using matches however came much later. B. The first great discovery that man probably made was that of fire. C. In olden times fires were made by rubbing two flints against each other till a spark was produced. D. And this spark set fire to dry straw, leaves or wood. Correct Answer BCDA

  • The correct answer is Option 3.
  • Among the given sentences, there are two independent sentences i.e. B & C. But sentence B is introducing the subject i.e. 'fire' so B is the first sentence.
  • Sentence C is talking about how the spark was produced which is continued by sentence D.
  • Therefore, the correct sequence BCDA is given in option 3.

Related Questions

Historically, the production of wood charcoal in locations where there is an abundance of wood dates back to a very ancient period, and generally consists of piling billets of wood on their ends so as to form a conical pile, openings being left at the bottom to admit air, with a central shaft to serve as a flue. The whole pile is covered with turf or moistened clay. The firing is begun at the bottom of the flue, and gradually spreads outwards and upwards. The success of the operation depends upon the rate of the combustion. Under average conditions, 100 parts of wood yield about 60 parts by volume, or 25 parts by weight, of charcoal; small-scale production on the spot often yields only about 50%, while large-scale became efficient to about 90% even by the seventeenth century. The modern process of carbonizing wood, either in small pieces or as sawdust in cast iron retorts, is extensively practiced where wood is scarce, and also for the recovery of valuable byproducts (wood spirit, pyroligneous acid, wood tar), which the process permits. The information given, if accurate, most strongly supports which of the following?