Cuáles fueron los dos factores que influyeron en que la Química se desarrollara como ciencia moderna hasta el siglo XIX, cuando estos factores permitieron la separación de las sustancias en sus componentes

answer; ///progressive relaxation;

the ems is the abbreviation for the emergency medical services. it is a service provided by a group of medical professionals specialised doctors and other healthcare staff.

any one can call 911 in case of any medical emergency and a group of health care professional will come and give the treatment required. every day the ems staff receive many phone call, which are related to different types of medical emergencies, out of which 25-28% are exclusively related to the respiratory issues.

so, the correct answer is 25-28%.

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