The following line graph shows the yearly sales figures for a manufacturing company. (a)What were the sales in (i)2002 (ii)2006? (b)What were the sales in(i)2003 (ii) 2005? (c)Compute the difference between the sales in 2002 and 2006. (d)In which year was there the greatest difference between the sales as compared to its previous year?

(i) Draw the graph of the following equations (a) y = 2 (b) y = –2 (c) y = 3 (d) y = –3 (ii) Are all these parallel to the X-axis? (iii) Find the distance between the graph of the line and the X-axis in each case

Observe this bar graph which is showing the sale of shirts in a ready made shop from Monday to Saturday. Now answer the following questions : (b) What is the scale chosen on the horizontal line representing number of shirts?

Observe this bar graph which is showing the sale of shirts in a ready made shop from Monday to Saturday. Now answer the following questions : (d) On which day were the minimum number of shirts sold?

Observe this bar graph which is showing the sale of shirts in a ready made shop from Monday to Saturday. Now answer the following questions : ( c) On which day were the maximum number of shirts sold? How many shirts were sold on that day?

For an experiment in botany,two different plants,plant A and plant B were grown under similar laboratory conditions.Their heights were measured at the end of each week for 3 weeks.The results are shown by the following graph.(a)How high was plant A after (i) 2 Weeks (ii)3 Weeks? (b)How high was plant B after (i) 2Weeks (ii)3 weeks? (c) How much did plant A grow during the 3rd week? (d)How much did plant B grow from the end of the 2nd week to the end of the 3rd week? (e) During which week did plant A grow most? (f)During which week did plant B grow least? (g)Were the two plants of the same height during any week shown here?Specify.

The sale of electric bulbs on different days of a week is shown below: Obseve the pictograph and answer the following questions : ( c) On which of the days same number of bulbs were sold?

The sale of electric bulbs on different days of a week is shown below: Obseve the pictograph and answer the following questions : (b) On which day were the maximum number of bulbs sold?

(i) A local magician was showing magic in a village street. He took egg shell and poured a solution over it. As a result, effervescences were formed. When he took a burning matchstick over it, it went off. (a) Identify the solution poured and the substance present in eff shell. (b) What is the reason behind effervescences? ( c) Write its balanced chemical equation. (d) Give the common name of the substance present in the egg shell. (ii) Draw a labelled diagram to show that acid solution in water conducts electricity.

A 3' ______________ 5' B C 5' _______________ 3'D AB and CD represent two strands of a DNA molecule. When this molecule undergoes replication, forming a replication fork between A and C in the above. (i) Name the template strands for replication. (ii) Using which strand as the template, will there be continuous synthesis of a complementary DNA strand? (iii) Complementary to which strand will Okazaki segments get synthesised and discontinuous synthesis will occur (iv) What are template strands and Okazaki pieces? (v) In which direction is a new strand synthesized?