What are three important resources found in Canada? coal, natural gas, iron ore
diamonds, gold, copper
copper, oil, silver
fish, minerals, forests

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.