Th Chemical Weapons Convention was ratified by Morocco at 29.04.1997.

I know of no "nuclear biological" weapons, perhaps you meant nuclear, biological, chemical (NBC) weapons, which can be any one of these.

Nuclear weapons, Biological Weapons, Chemical Weapons.

Biological weapons involve living things, such as germs. Mercury is a chemical, not a biological. Bio weapons might include the diseases of anthrax, plague, typhus, Ebola, etc.

Julian Perry Robinson has written:

'Public Health Response to Biological and Chemical Weapons'

'The effects of weapons on ecosystems' -- subject(s): Biological warfare, Chemical warfare, Environmental aspects, Environmental aspects of Biological warfare, Environmental aspects of Chemical warfare, Environmental aspects of Military weapons, Environmental aspects of Nuclear weapons, Environmental aspects of War, Military weapons, Nuclear weapons, War

'The United States binary nerve-gas programme' -- subject(s): Asphyxiating and poisonous Gases, Chemical weapons, Military policy, War use

'Chemical and biological warfare developments, 1985' -- subject(s): Biological warfare, Chemical warfare