On the basis of the given image, explain the source of human capital formation which may contribute to the economic growth in India. 
(a) (i) Distinguish between human capital and physical capital.
(ii) Define Sustainable Development.
OR
(b)
(i) Describe briefly the importance of micro-credit programmes in Rural India.
(ii) State any one strategy involved in attaining sustainable development in India.
Study the given molecular structure of double-stranded polynucleotide chain of DNA and answer the questions that follow. 
(a) How many phosphodiester bonds are present in the given double-stranded polynucleotide chain?
(b) How many base pairs are there in each helical turn of double helix structure of DNA? Also write the distance between a base pair in a helix.
(c) In addition to H-bonds, what confers additional stability to the helical structure of DNA?