Final answer:
The Geneva Conventions include a sanction against the use of chemical or biological weapons to discourage their use and hold violators accountable.
Step-by-step explanation:
The Geneva Conventions are a series of treaties that govern international humanitarian law. They were created to protect civilians and prisoners of war during military conflicts. These conventions serve as the basis for a broader body of international human rights law, which includes treaties that recognize the inalienable rights of people and codify crimes against humanity.
A sanction against the use of chemical or biological weapons is part of the Geneva Conventions because these weapons are considered to be inhumane and indiscriminate. The use of chemical or biological weapons can cause extensive harm to civilians and violate the principles of international humanitarian law. By including a sanction against these weapons, the Geneva Conventions aim to discourage their use and hold those who violate these conventions accountable.