CBSE Class 10 English Communicative SA 1 2010 (3)

CBSE Class 10 English Communicative SA 1 2010 (3). Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

 SECTION-A

(Reading - 20 Marks)

1.Read the following passage carefully  :

Unfortunately the chances of any animal becoming a fossil are not very great, and the chances of a fossil then being discovered many thousands of years later are even less. It is not surprising that of all the millions of animals that have lived in the past, we actually have fossils of only a very few.

There are several ways in which animals and plants may become fossilized. First, it is essential that the remains are buried, as dead animals and plants are quickly destroyed if they remain exposed to the air. Plants rot, while  scavengers, such as insects  and hyenas, eat the flesh and bones of animals.  Finally the few remaining  bones soon disintegrate in the hot sun and pouring rain. If buried in suitable conditions, however, animal  and plant remains will be preserved. The same chemicals  which  change sand and silt  into hard rock will also enter the animal  and plant remains and make them hard too.  When this  happens we say that they have become fossilized.  Usually  only the bones of an animal  and the toughest part of a plant are preserved

Answer  the following questions by choosing the best option  from  the ones given. Write  the answer in your answer sheet.

(a)    Why do we have fossils of only a few animals that lived in the past ?

(i)      Fewer animals lived in the past.

(ii)    very few animal remains became fossils and very few fossils are discovered years later.

(iii)   the chemicals  needed for making  animal  remains into fossils  are rare.

(iv)    none of the above.

(b)    Animal and plant remains get quickly  destroyed if they remain exposed to the air. How ?

(i)      Plants rot.

(ii)    Insects and hyenas which  live  on decaying  flesh.

(iii)   Few remaining bones soon break up into smaller pieces in the hot sun and pouring  rain.

(iv)    All of the above

(c)    What makes plant and animal  remains become hard ?

(i)     chemicals  which  change salt and silt  into rock.

(ii)    sun light and pouring rain

(iii)   preservation  of plant and animal  remains

(iv)    none of the above

(d)    The word  'Scavenger"  means

(i)      rascal, worthless  person

(ii)    animal or bird that lives on decaying flesh

(iii)   person who constantly  gets into trouble

(iv)    a person blamed  for the mistake  of another

Please click the link below to download pdf file of CBSE Class 10 English Communicative SA 1 2010 (3).

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