World War 1 Inventions

What was created in Germany as a result of a coal shortage?

What invention did the US incorporate into their soldiers uniform?

Which of the following was invented during WWI?

What was invented during WWI to allow dogfight pilots to shoot easily?

What is not a weapon invented during WWI

What country was first to use poison gas?

What invention cured children with weak bones from a disease called "rickets"?

This picture shows what invention from WWI?