You want to be able to treat the disorder before it gets too bad and irreparable. If you figure out whats going on and what food or substances are causing the issue, you can avoid those and take other precaustions as well.
Answer:
Trace elements are required by the human body in very minute quantity. Some of the examples of trace elements are iron and copper.
These elements acts as catalyst for the various types of reactions that takes place in the body. Iron is taken in body by diet that we eat. It is found in green vegetables and acts as an important constituent of the hemoglobin which helps in the transport of oxygen.
Copper is also taken inside the body by the food that we eat.It helps in iron absorption, prevent cardiovascular diseases, increases immunity.
Hence, trace elements is equally important as like that of major elements of the body.
A hazardous material is any item or agent ( it can be biological, chemical, radioactive, and any sort of physical object ), that has the potential of harming any biological creature or the environment (by biological we mean humans, animals etc.)
Any substance that is a health hazard is a hazardous material. Here are some examples : chemicals with carcinogents, toxic agents, sensitizers etc.
