What type of energy source generates the most harmful waste?

natural gas
nuclear fission reactors
solar
wind

Four types of motile cells in human body?

How does human environment effect the biosphere

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.