I'm caught up with aot and recently on tiktok, I heard about a character named Kevin...Explanation, please?

How did industrial production improvements impact export-dependent areas of the world during the great depression?   a.  demand for certain raw materials rose.      b.  demand for certain raw materials fell.      c.  the new technology was exported to most raw material producing nations.      d.  there was a decrease in tariffs.

Why is the battle of new orleans in the war of 1812 important?

What is one example of trench warfare ?