On the given political outline map of the world (on page 25), seven geographical features have been marked as A, B, C, D, E, F, and G. Identify any five with the help of the following information and write their correct names on the lines drawn near them.
A. An area of nomadic herding
B. A major sea port
C. An area of extensive commercial grain farming
D. A major airport
E. An inland waterway
F. A major airport
G. A terminal station of a trans-continental railway