Which of the following was not introduced as a new weapon during World War I?

1. A Big Bertha B The Red Baron C mustard gas D flamethrowers . 2. Why did most of the fighting in World War I take place in such a small area? A There is only a small amount of flat land in Europe. B Trench warfare immobilized the armies. C... show more 1. A Big Bertha
B The Red Baron
C mustard gas
D flamethrowers

. 2. Why did most of the fighting in World War I take place in such a small area?
A There is only a small amount of flat land in Europe.
B Trench warfare immobilized the armies.
C The German and Allied armies were the largest.
D Germany’s military strategy was based on static warfare.

3. Who used chemical warfare first?
A Germany
B Great Britain
C Russia
D France
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