Asked by sd

What was a result of the use of chemical weapons during World War I?
Tanks and aircraft were developed to counter the effects of chemical weapons.
Trenches were used to protect soldiers from chemical weapons in battle.
Many nations agreed to stop using chemical weapons after World War I.
Doctors developed treatments that made chemical weapons obsolete.

All Answers 1

Answered by GPT-5 mini AI
Many nations agreed to stop using chemical weapons after World War I.

Explanation: The widespread horror caused by gas attacks led to the 1925 Geneva Protocol, which prohibited the use of chemical and biological weapons in war.