On the given political outline map of India, locate and label the following with appropriate signs:
(i) Amravati – Buddhist site
(ii) Varanasi – Ancient city
(iii) (a) Vijayanagara – An Empire of 14th century
OR
(iii) (b) Orissa – Territory of 14th century
(i) Amravati - Buddhist Site: Amravati, a major Buddhist site in Andhra Pradesh, is located in the Guntur district. You should mark it in the map in the central Andhra Pradesh.
(ii) Varanasi - Ancient City: Varanasi, also known as Benaras, is one of the oldest living cities of the world. It is located in Uttar Pradesh, along the banks of the Ganges. You should mark it on the map in the Eastern part of Uttar Pradesh.
(iii)(a) Vijayanagara - An Empire of 14th Century: Vijayanagara was a major empire in South India during the 14th to 16th centuries, with its capital in Hampi (present day Karnataka), and it is located in south-central Karnataka.
OR
(b) Orissa - Territory of 14th century: Orissa, is located in Eastern India along the coast of Bay of Bengal. You can mark this area along the coast of modern day Odisha.
On the same political outline map of India, two places related with the centres of revolt of 1857 one marked as A and B. Identify them and write their names on the lines marked near them.
(A) Delhi
(B) Calcutta
Draw a rough sketch for the curve $y = 2 + |x + 1|$. Using integration, find the area of the region bounded by the curve $y = 2 + |x + 1|$, $x = -4$, $x = 3$, and $y = 0$.
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?
