"Evidence that, standing alone, unexplained or uncontradicted, is sufficient to establish a given fact or group of facts constituting a party's claim or defense", is the definition of which type of evidence

Situation #2: imagine that you are a newspaper editor in columbus, oh in 1863. the civil war has been dragging on for more than two years already and shows no signs of ending soon. you are aware that many black males are willing to enlist in the union army but you fear that they may be mistreated and abused by the majority of soldiers on either side in this war. write a one-page letter (double spaced) editorial for tomorrow's edition of the newspaper. the topic is military service in the union army by free african american males. in your editorial, take a clear position for or against having black men join the fight. be sure to give reasons for whatever position you choose to take.

This refers to weather and atmospheric conditions measured over a long period of time.

How would having more railroad tracks be advantageous during a war