Aresearcher observing an ecosystem describes the ambient temperature, precipitation, and the microbial organisms present in the soil. which factors is the researcher most likely describing? a) abiotic factors in a prairie b) abiotic and biotic factors in a prairie c) biotic factors in an ocean d) abiotic and biotic factors in an ocean asap

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.