Q -IV Give complete answers to these question.
UNIT ( 1 )
1.Why did Pope Gregory XIII try to make a better calendar?
2.How long did Julius Caesar think a year should be?
3.How long does the earth take to revolve round the sun one time?
4.How did Julius Caesar make the Egyptian calendar right?
UNIT ( 2 )
1.Under whom did the four youths come to study?
2.Who climbed the tall bael tree and why was it easy for him to climb the tree?
3.What did the professor give the four youths as a parting gift and why?
4.Why did the four youths fail to carry out the different tasks?
5.Where did the three friends of the astrologer look for him and where did they find him?
UNIT ( 3 )
1.Why is there no sound on the moon?
2.Why is there no air on the moon?
3.How long does it take the moon to revolve around the earth once?
4.How long has the moon existed in space?
5.How far is the moon from the earth?
6.Why is the moon completely devoid of water?
7.What is the effect of the sudden change in temperature on the moon ?
UNIT ( 4 )
1.When did the hourglass come into use?
2.Why could pendulum clocks show the time more correctly than earlier clocks?
3.What are digital clocks?
4.When do electric clocks stop giving the right time ?
5.Why did people become more interested in knowing the correct time?
6.How do digital clocks tell the time?
UNIT ( 5 )
1.What devices are used to display goods in supermarkets ?
2.How has the problem of quick payment been solved at supermarkets?
3.How do the organizers of supermarkets display a great number of goods?
4. What is the general purpose of a self-service store?
5.How are the goods of every description provided in supermarkets?
6.What does the Automatic Itemizing and Change Computing Cash Register do after totalling the bill?
UNIT ( 6 )
1.Why can computers work for a long time?
2.What can computers do if they were given arms and hands?
3.What could modern robots for factories do if there were any problems?
4.What simple tasks can domestic robots perform?
5.For what purpose are large and complex robots employed in car production?
6.In what environments are robots particularly useful?
UNIT ( 7 )
1.When did Jenny Bishop's dream come true for the first time?
2.How did Jim Bishop's mother make extra money?
3.What did young Jim Bishop think his servants would do when he became rich?
4.How did Jim Bishop's dream come true?
5.What did Jim Bishop and his mother do when the days were soft and tender?
6.Why did John Bishop have to pawn the diamond earrings of his wife?
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