Answer:
b... Airplanes became involved in active battle
Explanation:
Airplane use change as World War I progressed as they became involved in active battle.
Trench warfare allowed aircraft to be useful in gathering information beyond trenches about enemy activities and weapons.
Aeroplanes are also used for drop messages for the forces on the ground.
It also drops explosives like grenades and bombs by pilots from a low altitude to ensure accuracy.
Therefore we can conclude that aeroplane use changed as World War I progressed.
Find out more about World War I here:
brainly.com/question/8535233
The Complete question is as follows.
How did airplane use change as World War I progressed?
Military forces became dependent exclusively on airplanes for fighting battles.
Airplanes became involved in active battle.
Fewer civilians took airplanes because of German threats.
Airplane use declined, as there were insufficient materials to build new planes.
