Before you preform CPR, if the person is unconscious and is not responding to questions (such as: "Are you okay?) call 911 or the local emergency number, and get an AED, if one is available. As soon as the AED is ready, deliver one shock if instructed by the device, then begin CPR
The correct answer is A (Automobiles).
Particulate matter is a complex mixture of extremely small particles and liquid droplets.
One of the major components of particulate matter is sulphate usually coming from sulphur dioxide found in exhaust fumes that have been produced by automobiles . Other components are nitrates , ammonia, sodium chloride and black carbon.
Other components of particulate matter come from dust, soot, smoke, industrial emissions.
Particulate matter is one of the most common contributor to air pollution.
When preparing food, wearing jewelry is safe.
I would say false, I've never heard of this, but then again I'm not 100% sure
