Mortars, artillery shells especially shrapnell, hand grenades and rifle grenades.
Bombs were invented during WWI, But they were not used until WWII.
Matches, bombs and incendiary bullets.
They hadn't been invented yet.
Germany and United States where working to make them work. United States got it first and used first on Japan over the cities of Hiroshima and Nagasaki.
The weapon was developed by the Manhattan Project during World War II. It derived its explosive power from the nuclear fission of uranium 235.
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.
All of the combatant nations used bombs during WWII. Rifle/Machingun bullets chip concrete, dent metal, and tear up wood. Bombs destroy concrete, metal, and wood.
nuclear
No bombs were actually used during the Cold War. That was why it was not a hot war.
Great Britain used bombs
None. The first atomic bomb was dropped decades after World War 1 finished. Atomic bombs weren't used in war until World War II.
There were two atomic bombs use during WWII. They were called the 'Little Boy' and 'Fat Man.'