A belief is when you anticipate but cannot explain. Faith is when you need to explain, there is no question to be made
I agree with that below, belief does not truly need evidence (at least undeniable, because in reality what is truly undeniable...see realism), more it needs the capacity of doubt. To that end, any action we desire we construct evidence towards it being fact. There is always doubt so any action will require faith. Without faith that what you have chosen is true then nothing will be true because nothing will happen. Without belief, we would not believe anything we here, nothing would be acknowledged as real. Nothing would matter.