Evolution is the ultimate means of perception so therefore the means of gaining knowledge is in the theory of origins, why are we here, what purpose, social and moral issues etc.
Bull. Evolution explains how one species can change into another, how living things adapt to the pressures they are subjected to. It has nothing to do with how life started.
Evolution does explain why we are here, blind chance. There is no purpose for our being here, we are small insignificant specks in the universe made up of small particles, nothing important.
Evolution most definitly does not attempt to explain morals. It may attempt to explain behaviours, but it does not try and imply a justice system based on morals.
Evolution can be, and has been tested. This makes it valid science, you can then make predictions about what should be found, these predictions can be then confirmed or used to falsify the theory. If for instance a mammal in the wild was to suddenly grow a pair of functional wings, and still have all four normal limbs as well(so no bats arent evidence of this) Then that would be proof to falsify evolution. So it can be tested, these tests can be repeated, it can be falsified. It is science.
Natural selection and mutation are grounded very much in fact. Watch a herd of gazelles, the good healthy runners arent caught by the cheetah, the weak slow runners are. Nature is selecting which animals survive. Mutation is observed all over the place, everyone has mutations in their DNA, its just most of them arent important, some however can be observed, leading to genetic diseases.
I think the rest of the points have been already covered sufficiently (as have most of these, but it can never hurt to try and hammer them in once more)
Unseul
Give a man a fire and he's warm for a day. Set a man on fire and he's warm for the rest of his life....