Answer:
An embolus is the medical term for a blood clot that has moved within the bloodstream to a different location. With pulmonary embolus (pulmonary embolism), two issues occur.
Mark's best plan of action would be to walk to where his girlfriend is two blocks away and drive her home.
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.
No it doesn't cause they're two different things
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