What was the main reason tanks were introduced during world war i?

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.

it   would try making the   president who would the economy get out of depression picked

when   i did the assesment i chose c it was correct