Answer to the question no-1:
a) – (ii) 1,47,570 square kilometres
b) – (iii) The Padma, The Jamuna
c) – (iv) about 120 kilometres long
d) – (i) about 14 crores
e) – (iii) free
f) – (i) a peasant
g) – (iii) orange
h) – (i) The name of our country is Bangladesh
i) – (i) Because it is an interesting place
j) – (iv) Because it is criss-crossed with many big and small rivers