besides Spanish what other language is spoken in the north part of Spain

In addition to Spanish, the other language spoken in the north part of Spain is Basque (Euskara). Basque is the oldest known language in Europe and is primarily spoken in the Basque Country region, which encompasses parts of northern Spain and southwestern France.

In addition to Spanish, another language commonly spoken in the northern part of Spain is called Basque, or Euskara. Basque is a non-Indo-European language and has co-official status in the Basque Country region, which includes areas of northern Spain and southwestern France. It is the oldest known language in Europe and is unrelated to any other language family in the world.

The other language spoken in the north part of Spain, particularly in the region of Catalonia, is Catalan. To determine this, you can either have prior knowledge of the languages spoken in Spain or conduct a quick internet search for the main languages spoken in specific regions of Spain. You can use search engines like Google or online language resources for this purpose.