yes, usually in the form of artillery shells.
Yes. On world war 1 & 2,Germans used bombs and riffles.
No.
Yes, early bombs were conventional artillery shells, but by the end of the war customized bombs were in production.
Bombs were invented during WWI, But they were not used until WWII.
None. The first atomic bomb was dropped decades after World War 1 finished. Atomic bombs weren't used in war until World War II.
No.
Rudolf and santa made them and then the elves dropped them
Below I have added some links about some unconventional bombs that were used during World War 1. Bombs basically have chemicals/powders that ignite when the bomb lands or a detonator causes the bomb to explode. You will be amazed at what bombs were around then when you see the links.
NONEThere were no atomic bombs used in World War 1. It wasn't invented until the end of the Second World War. Hiroshima and Nagasaki, in Japan, were bombed at the end of World War 2.World War I ended with the Treaty of Versailles in 1919.
They hadn't been invented yet.
grenades
bombs