Answer:
Primary because document is something that happened the day of the event
Explanation:
This is true. When you choose between two things, the thing that you didn't choose is what cost you the thing you chose. It's called an opportunity cost and it presents what you had to lose or give up in order to attain the thing that you chose and assessing these costs is extremely important in decision making.
Answer:
change
Explanation:
the clock has a tendency to fall behind by a few minutes, replace tendency with change and it makes sense more than the other options.
Answer:
1) A photo is not always 100% reliable and true as war photographers might only want us to see what they want us to see.
2) photographs can be biased in the sense that war photographers might put in picture more of the losses on the enemy side than is true and less of the losses on their own side than is true in order to boost morale on thier own side and propagate a notion of them winning the war.