On the outline political map of the world, seven geographical features have been marked as A, B, C, D, E, F and G. Identify any five of them and write their names on the lines drawn near them:
  
 A major sea port in Germany.
  
 Terminal station of Trans-Siberian Railway.
  
 An international airport.
  
 An area of subsistence gathering.
  
 An important waterway.
  
 An area of ‘Nomadic Herding’.
  
 An area of extensive commercial grain farming.