Unseen Passage Practice Set-13 l best MCQ with quiz

CTET July 2013 paper 01 unseen Passage in english with MCQ quiz questions and answers

Read the given passage and answer the question that follow by selecting the most appropriate option.

The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for morethan two centuries. How such large creatures, which had wingspans from 8 to 12 metres, solved the problems of powered flight, and exactly what these creatures were-reptlies or birds are among the questions scientists have puzzled over.

Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skills,pelvises and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the class of birds. In pterosaurs, greatly elongated fourth finger of each forelimb supported a wing like membrane. In birds the second finger is the principle strut of the wing. If the peterosaur walkedor remained stationary, the fourth finger and with itthe wing, could only turn upward in an extended inverted V-shape alongside of the animal’s body.Both the ptrosaurs and the birds have hollow bones,a feature that represents a saving in weight. In the birds, however, these bones are reinforced more massively by internal struts.

Although scales typically cover reptiles, the pterosaurs probably had hairy coats. The recent discovery of a pterosaur specimen covered in long,dense and relatively thick hair-like fossil material,was the first clear evidence that this reasoning was correct. Efforts to explain how the pterosaurs became air borne have led to suggestion that they launced themselves by jumping from cliffts, by dropping from trees, or even by rising into light winds from the crests of waves

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