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