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.

Many nations agreed to stop using chemical weapons after World War I.

Explanation:

The use of chemical weapons during World War I had devastating effects on humanity; both on the aggressors and aggrieved. It killed hundreds of thousands and gave many others, after-effects that lasted them decades.

The Chemical Weapons Convention (CWC) control treaty was put into force on 29th April 1997 where production, stockpiling, and use of chemical weapons was outlawed.

C: Many nations agreed to stop using chemical weapons after World War I. on edge 2021

montesquieu took the view that the roman republic had powers separated so that no one could usurp complete power. in the british constitutional system, montesquieu discerned a separation of powers among the monarch, parliament, and the courts of law.

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.