Observation/recon, bombing and fighter.
we used planes in world war 2 it was easyer to bomb other places and they where new.
Yes
fighters,bombers,and cargo planes primarily.
scouting
Yes, extensively. And WWI was the first war in which air planes were used.
the wright brothers
kinds of fighter planes
Various types of weapons were used on planes in World War 2 but the number one weapon was the Browning 50 Caliber automatic gun with thousands of rounds.
spitfire
Bombing the enemy troops.
200,000 worldwide
If the question is "What in the First World War" then the answer is planes (Gotha's).