The Mexican war led to the capture of Arizona, New Mexico, Texas, and a part of California. Hope this helps.
Because the average temperature in the room also increased.
When we feel excitement, our blood will regulate faster and create faster metabolism. This will lead to higher body temperature because of the nutrient burning process. If this happen to all people in the arena, the average temperature is bound to be increased.<span />
What the writer of the primary source was thinking at the exact time whatever the person was writing about.
