You have arrived on the scene of an incident involving an explosion. People in the immediate vicinity are all experiencing runny
noses and difficulty breathing. Some are having convulsions. You suspect a terrorist incident involving a: A. biological agent
B. blister agent
C. nerve agent
D. blood agent
A nerve agent is a chemical in which on exposure to humans affects the functioning of the nervous system. These chemicals are known to disrupt the process by which messages are transferred to the organs from the nerve. This disruption occurs by blocking the activity of acetylcholinesterase, which is responsible for the catabolism of a neurotransmitter, acetylcholine.
On exposure to a nerve agent, the muscles of the body become paralyzed and early symptoms is production of excess mucous such as in runny nose, pupil constriction and also difficulty in breathing.
These agents are sometimes used in chemical warfare. Examples include sarin, tabun etc.
When a plant dies and pressure is applied it will start to form a sort off organic rock aka coal. witch is a fuel sores commonly found throughout the world.
For the environmental risk, it is much better to prevent pollution than to deal with it after it has already been made. When you deal with the pollution, it is hard to say that you can eliminate completely. So, prevention is the first strategy.