During world war i, why was propaganda important for the war efforts?

A host of factors was made possible with propaganda which was a norm during the World War I.

They include:

Mobilization of detestation against the enemy

It helped to enlighten and make their people to see the reasons and importance of the war.

It helped in garnering allegiance and cooperation of neutral countries to be on their side during the way and provide the necessary support.

It also helped to strengthen the support of countries who were already allies of themselves.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.

the answer is a new goverment.