12. How does the clearing of forests increase greenhouse gases?
A. O more oxygen is released into the atmosphere when vegetation is removed
B.
carbon dioxide is released when vegetation is burned or decayed
c. nitrogen gases build up in an area where forests have been removed
D.
trees are cut down and water vapor is released into the atmosphere

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.