There are two types of evidence -- direct and circumstantial. Direct evidence usually is that which speaks for itself: eyewitness accounts, a confession, or a weapon. I did not manage to find much of the supported text but I know that you can find the support at Prime Writings site.
The author thinks it was important for the reader to know that the Taliban is not part of Pakisran's government so that the reader understands that the Taliban's actions are not approved nor stopped by the government.
D most likely because we can then learn if the animal gets affected by the amount of whatever you use or not.
Taxes are calculated on how good your income is, the more you make the more they ask
Because they might not know who they re so they will keep their feelings to themselves