Read the bar graph given in Fig. 23.17 and answer the following questions:

(i) What information is given by the bar graph?

(ii) What was the crop-production of rice in 1970-1971?

(iii) What is the difference between the maximum and minimum production of rice?

(1) The bar graph represents the production of rice crop in India in different years.

(2) According to the height of the 3^rd bar from the left, the crop-production of rice in 1970-71 is 42.5 lakh tonnes.

(3) The maximum product of rice is 55 lakh tonnes (height of the 4^th bar from the left) in the year 1980-81 and the minimum product of rice is 22 lakh tonnes (height of the 1^st bar from the left) in the year 1950-51. Hence, the difference between maximum and minimum production of rice (in lakh tonnes) is