text: # show the population of Germany
  SELECT population 
  FROM world
  WHERE name = 'Germany'
  
  #Show the name and the population for 'Sweden', 'Norway' and 'Denmark'.
  SELECT name, population 
  FROM world
  WHERE name IN ('Sweden', 'Norway', 'Denmark');
  
  #show the country and the area for countries with an area between 200,000 and 250,000.
  SELECT name, area 
  FROM world
  WHERE area BETWEEN 200000 AND 250000
  
  #quiz
  #1. Select the code which produces this table
  # 1 => 3
  # 2 => E
  # 3 => 5
  # 4 => 3
  # 5 => 3
  # 6 => 3
  # 7 => 3