What is the most likely reason that nations raised tariffs in imports during the great depression

They wanted to increase the sales of their own products.  In order to stimulate their economy, they concentrate on buying goods and services in their countries.  It was not the time to patronize imports because getting more imports would further harm the economy.  So they limited trade through tariffs. 

battle of survival between farmers and the rabbits during the great depression

explanation:

7 - to develop an asian ally

11- the red scare

14   the power of military -industrial complex

17 - the economy grew quickly

24 - the separation of church and state was not important