The Lee enfield rifle was the most common as it was cheap, had cheap ammo and could fire far and quite fast.
Hope this helped :)
The most common one that was used as a weapon in World War 1 is called the Artillery
The most common method was with artillery.It is NOT a biological weapon, it is a chemical weapon.
Most likely it was the M-1 Rifle.
There can be no doubt that the most deadliest weapon of world war 2 was the nuclear bombs that dropped on Hiroshima.
the tank
Propaganda.
Mustard Gas
The rifles most commonly used by the major combatants were, among the Allies, the Lee-Enfield
Yes. Especially towards the start of the war, bolt action and semi automatic rifles were the most common infantry weapon used.
The Atomic bomb.
Atomicbomb.
The A-bomb.